Update Validators to extend ABC instead of implementing interface.

app/Models/Validation/Validators/OkValidator.php

@@ -2,9 +2,14 @@
 
 namespace App\Models\Validation\Validators;
 
-use App\Models\Validation\Validators\ValidationInterface;
+use App\Models\Validation\Validators\Validator;
+
+class OkValidator extends Validator {
+    public function isCurrentValid(): bool
+    {
+        return true;
+    }
 
-class OkValidator implements ValidationInterface {
     public function isValid(): bool
     {
         return true;