Add more test cases for email validation
Change email validation regex to reject backticks

* regex now will no accept backticks in any part of the email string
Fix typo
Refector phone number regex

* Refactor regex to accept optional +1 at the beginning of the phone
string
Added phone number test cases
Change phone number validator regex

* Change regex so it do not accept letters.
Change test cases

* phone number validator will no accept letter change test case to be on
the invalid t cases rray.