Refactor Auth controllers : thicker, with Form requests & API resource

resources/lang/en/errors.php

@@ -15,7 +15,6 @@ return [
 
     'resource_not_found' => 'Resource not found',
     'error_occured' => 'An error occured:',
-    'already_one_user_registered' => 'There is already a registered user.',
     'cannot_register_more_user' => 'You cannot register more than one user.',
     'refresh' => 'Refresh',
     'no_valid_otp' => 'No valid OTP resource in this QR code',

resources/lang/en/validation.php

@@ -162,6 +162,9 @@ return [
         'ids' => [
             'regex' => 'IDs must be comma separated, without trailing comma.',
         ],
+        'name' => [
+            'firstUser' => 'There is already a registered user',
+        ]
     ],
 
     /*