Issue:
Bug: [REFACTOR]: [Multisafepay] Remove Default Case Handling



### :memo: Feature Description

- We utilize match statements to make pivotal decisions, such as generating requests based on the payment method type and managing responses received from the connector. 
- These conditions generally go hand in hand with enum variants. 
- Default case is used because a match statement needs to be exhaustive i.e. every variant needs to be covered. 
- So, if all the explicit cases are handled then default is used to handle the rest.
- Each connector have these match statements but many of them don’t provide reference to each variant in their default case, rather a `_` is put to handle all the other cases. 
- This approach carries a risk because developers may inadvertently overlook the need for explicit handling of the new cases.

### :hammer: Possible Implementation

- Instead of relying on a default match case `_`, developers should handle each and every variant explicitly. 
- By doing so, if there are any changes in the future, they can readily assess the impact of their modifications simply by compiling the code.
- You can check this PR for further reference https://github.com/juspay/hyperswitch/pull/1955

:bookmark: Note: All the changes needed should be contained within `hyperswitch/crates/router/src/connector/`


### :package: Have you spent some time checking if this feature request has been raised before?

- [X] I checked and didn't find a similar issue

### :package: Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### :sparkles: Are you willing to submit a PR?


Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [x] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
Removed all the default case handling in multisafepay and handle all the missing cases.
Closes: #2274 


### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

<!--
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Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
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If it fixes an open issue, please link to the issue here.

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## How did you test it?
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## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [ ] I addressed lints thrown by `cargo clippy`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
- [ ] I added a [CHANGELOG](/CHANGELOG.md) entry if applicable


Testing:

Patch:
diff --git a/crates/router/src/connector/multisafepay/transformers.rs b/crates/router/src/connector/multisafepay/transformers.rs
index a8366fadf81..385c85e0aa6 100644
--- a/crates/router/src/connector/multisafepay/transformers.rs
+++ b/crates/router/src/connector/multisafepay/transformers.rs
@@ -229,11 +229,13 @@ impl TryFrom<utils::CardIssuer> for Gateway {
             utils::CardIssuer::Maestro => Ok(Self::Maestro),
             utils::CardIssuer::Discover => Ok(Self::Discover),
             utils::CardIssuer::Visa => Ok(Self::Visa),
-            _ => Err(errors::ConnectorError::NotSupported {
-                message: issuer.to_string(),
-                connector: "Multisafe pay",
+            utils::CardIssuer::DinersClub | utils::CardIssuer::JCB => {
+                Err(errors::ConnectorError::NotSupported {
+                    message: issuer.to_string(),
+                    connector: "Multisafe pay",
+                }
+                .into())
             }
-            .into()),
         }
     }
 }
@@ -247,8 +249,31 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for MultisafepayPaymentsReques
             api::PaymentMethodData::Wallet(ref wallet_data) => match wallet_data {
                 api::WalletData::GooglePay(_) => Type::Direct,
                 api::WalletData::PaypalRedirect(_) => Type::Redirect,
-                _ => Err(errors::ConnectorError::NotImplemented(
-                    "Payment method".to_string(),
+                api::WalletData::AliPayQr(_)
+                | api::WalletData::AliPayRedirect(_)
+                | api::WalletData::AliPayHkRedirect(_)
+                | api::WalletData::MomoRedirect(_)
+                | api::WalletData::KakaoPayRedirect(_)
+                | api::WalletData::GoPayRedirect(_)
+                | api::WalletData::GcashRedirect(_)
+                | api::WalletData::ApplePay(_)
+                | api::WalletData::ApplePayRedirect(_)
+                | api::WalletData::ApplePayThirdPartySdk(_)
+                | api::WalletData::DanaRedirect {}
+                | api::WalletData::GooglePayRedirect(_)
+                | api::WalletData::GooglePayThirdPartySdk(_)
+                | api::WalletData::MbWayRedirect(_)
+                | api::WalletData::MobilePayRedirect(_)
+                | api::WalletData::PaypalSdk(_)
+                | api::WalletData::SamsungPay(_)
+                | api::WalletData::TwintRedirect {}
+                | api::WalletData::VippsRedirect {}
+                | api::WalletData::TouchNGoRedirect(_)
+                | api::WalletData::WeChatPayRedirect(_)
+                | api::WalletData::WeChatPayQr(_)
+                | api::WalletData::CashappQr(_)
+                | api::WalletData::SwishQr(_) => Err(errors::ConnectorError::NotImplemented(
+                    utils::get_unimplemented_payment_method_error_message("multisafepay"),
                 ))?,
             },
             api::PaymentMethodData::PayLater(ref _paylater) => Type::Redirect,
@@ -262,8 +287,31 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for MultisafepayPaymentsReques
             api::PaymentMethodData::Wallet(ref wallet_data) => Some(match wallet_data {
                 api::WalletData::GooglePay(_) => Gateway::Googlepay,
                 api::WalletData::PaypalRedirect(_) => Gateway::Paypal,
-                _ => Err(errors::ConnectorError::NotImplemented(
-                    "Payment method".to_string(),
+                api::WalletData::AliPayQr(_)
+                | api::WalletData::AliPayRedirect(_)
+                | api::WalletData::AliPayHkRedirect(_)
+                | api::WalletData::MomoRedirect(_)
+                | api::WalletData::KakaoPayRedirect(_)
+                | api::WalletData::GoPayRedirect(_)
+                | api::WalletData::GcashRedirect(_)
+                | api::WalletData::ApplePay(_)
+                | api::WalletData::ApplePayRedirect(_)
+                | api::WalletData::ApplePayThirdPartySdk(_)
+                | api::WalletData::DanaRedirect {}
+                | api::WalletData::GooglePayRedirect(_)
+                | api::WalletData::GooglePayThirdPartySdk(_)
+                | api::WalletData::MbWayRedirect(_)
+                | api::WalletData::MobilePayRedirect(_)
+                | api::WalletData::PaypalSdk(_)
+                | api::WalletData::SamsungPay(_)
+                | api::WalletData::TwintRedirect {}
+                | api::WalletData::VippsRedirect {}
+                | api::WalletData::TouchNGoRedirect(_)
+                | api::WalletData::WeChatPayRedirect(_)
+                | api::WalletData::WeChatPayQr(_)
+                | api::WalletData::CashappQr(_)
+                | api::WalletData::SwishQr(_) => Err(errors::ConnectorError::NotImplemented(
+                    utils::get_unimplemented_payment_method_error_message("multisafepay"),
                 ))?,
             }),
             api::PaymentMethodData::PayLater(
@@ -273,8 +321,17 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for MultisafepayPaymentsReques
                 },
             ) => Some(Gateway::Klarna),
             api::PaymentMethodData::MandatePayment => None,
-            _ => Err(errors::ConnectorError::NotImplemented(
-                "Payment method".to_string(),
+            api::PaymentMethodData::CardRedirect(_)
+            | api::PaymentMethodData::PayLater(_)
+            | api::PaymentMethodData::BankRedirect(_)
+            | api::PaymentMethodData::BankDebit(_)
+            | api::PaymentMethodData::BankTransfer(_)
+            | api::PaymentMethodData::Crypto(_)
+            | api::PaymentMethodData::Reward
+            | api::PaymentMethodData::Upi(_)
+            | api::PaymentMethodData::Voucher(_)
+            | api::PaymentMethodData::GiftCard(_) => Err(errors::ConnectorError::NotImplemented(
+                utils::get_unimplemented_payment_method_error_message("multisafepay"),
             ))?,
         };
         let description = item.get_description()?;
@@ -354,8 +411,31 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for MultisafepayPaymentsReques
                     })))
                 }
                 api::WalletData::PaypalRedirect(_) => None,
-                _ => Err(errors::ConnectorError::NotImplemented(
-                    "Payment method".to_string(),
+                api::WalletData::AliPayQr(_)
+                | api::WalletData::AliPayRedirect(_)
+                | api::WalletData::AliPayHkRedirect(_)
+                | api::WalletData::MomoRedirect(_)
+                | api::WalletData::KakaoPayRedirect(_)
+                | api::WalletData::GoPayRedirect(_)
+                | api::WalletData::GcashRedirect(_)
+                | api::WalletData::ApplePay(_)
+                | api::WalletData::ApplePayRedirect(_)
+                | api::WalletData::ApplePayThirdPartySdk(_)
+                | api::WalletData::DanaRedirect {}
+                | api::WalletData::GooglePayRedirect(_)
+                | api::WalletData::GooglePayThirdPartySdk(_)
+                | api::WalletData::MbWayRedirect(_)
+                | api::WalletData::MobilePayRedirect(_)
+                | api::WalletData::PaypalSdk(_)
+                | api::WalletData::SamsungPay(_)
+                | api::WalletData::TwintRedirect {}
+                | api::WalletData::VippsRedirect {}
+                | api::WalletData::TouchNGoRedirect(_)
+                | api::WalletData::WeChatPayRedirect(_)
+                | api::WalletData::WeChatPayQr(_)
+                | api::WalletData::CashappQr(_)
+                | api::WalletData::SwishQr(_) => Err(errors::ConnectorError::NotImplemented(
+                    utils::get_unimplemented_payment_method_error_message("multisafepay"),
                 ))?,
             },
             api::PaymentMethodData::PayLater(ref paylater) => {
@@ -365,15 +445,36 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for MultisafepayPaymentsReques
                             billing_email,
                             ..
                         } => billing_email.clone(),
-                        _ => Err(errors::ConnectorError::NotImplemented(
-                            "Payment method".to_string(),
-                        ))?,
+                        api_models::payments::PayLaterData::KlarnaSdk { token: _ }
+                        | api_models::payments::PayLaterData::AffirmRedirect {}
+                        | api_models::payments::PayLaterData::AfterpayClearpayRedirect {
+                            billing_email: _,
+                            billing_name: _,
+                        }
+                        | api_models::payments::PayLaterData::PayBrightRedirect {}
+                        | api_models::payments::PayLaterData::WalleyRedirect {}
+                        | api_models::payments::PayLaterData::AlmaRedirect {}
+                        | api_models::payments::PayLaterData::AtomeRedirect {} => {
+                            Err(errors::ConnectorError::NotImplemented(
+                                utils::get_unimplemented_payment_method_error_message(
+                                    "multisafepay",
+                                ),
+                            ))?
+                        }
                     }),
                 }))
             }
             api::PaymentMethodData::MandatePayment => None,
-            _ => Err(errors::ConnectorError::NotImplemented(
-                "Payment method".to_string(),
+            api::PaymentMethodData::CardRedirect(_)
+            | api::PaymentMethodData::BankRedirect(_)
+            | api::PaymentMethodData::BankDebit(_)
+            | api::PaymentMethodData::BankTransfer(_)
+            | api::PaymentMethodData::Crypto(_)
+            | api::PaymentMethodData::Reward
+            | api::PaymentMethodData::Upi(_)
+            | api::PaymentMethodData::Voucher(_)
+            | api::PaymentMethodData::GiftCard(_) => Err(errors::ConnectorError::NotImplemented(
+                utils::get_unimplemented_payment_method_error_message("multisafepay"),
             ))?,
         };