Merkez validations

app/Rules/OnlyLetters.php

@@ -15,7 +15,7 @@ class OnlyLetters implements ValidationRule
     public function validate(string $attribute, mixed $value, Closure $fail): void
     {
         if (! preg_match('/^([a-zA-Zа-яZžŽäÄňŇöÖşŞüÜçÇýÝ])+$/', $value)) {
-            $fail('The :attribute field must only contain letters.');
+            $fail(__('validation.alpha'));
         }
     }
 }