fix($cordovaFacebookConnect): change provider name

In order to use a plugin specific provider name it has been changed to `$cordovaFacebookConnectProvider` as @programming-kid also mentioned it was intended.

---

**BREAKING CHANGE:** the facebookConnect provider name has been changed

To migrate the code follow the example below:

Before:

```js
.config(['$cordovaProvider', function ($cordovaProvider) {
  $cordovaProvider.setFacebookAppId(12345);
}]);
```

After:

```js
.config(['$cordovaFacebookConnectProvider', function ($cordovaFacebookConnectProvider) {
  $cordovaProvider.setFacebookAppId(12345);
}]);
```