Error handling for react

[Aby-JS]

New Errors that have been catered:

authMethods: {
   "type": "validation_error",
   "validation": [
       {
           "field": "username",
           "message": "user doesn't exist"
       }
   ]
}

passkeyLoginStart: {
   "details": "user doesn't exist",
   "type": "not_found"
}

passkeyRegisterStart: {
   "type": "validation_error",
   "validation": [
       {
           "field": "username",
           "message": "Invalid email address"
       }
   ]
}

signupEmailOtpStart: {
 "type": "validation_error",
 "validation": [
   {
     "field": "username",
     "message": "Invalid / unreachable email address"
   }
 ]
}

New Cases that have been handled:

• If the user tries to login with an email address which is not registered he is shown a "User doesn't exist" error as email input field error.
• If the user tries to signup with an email for which we recieve invalid/unreachable email address issue from BE we navigate him to the first screen so that he can correct his input and also shown him the error "Invalid / unreachable email address"" as email input field error.

[incorbador]

FYI: I will resolve the conflicts here now