Change flash message type danger to error

Since we are using noty js for flash messages, noty does
not have danger type, it has error type of notification.

app/Exceptions/Handler.php

@@ -54,7 +54,7 @@ class Handler extends ExceptionHandler
                 return response()->json(['error' => 'Forbidden Action.'], 403);
             }
 
-            flash(__('auth.unauthorized_access', ['url' => $request->path()]), 'danger');
+            flash(__('auth.unauthorized_access', ['url' => $request->path()]), 'error');
 
             return redirect()->home();
         }
@@ -64,7 +64,7 @@ class Handler extends ExceptionHandler
                 return response()->json(['error' => 'Data not found.'], 404);
             }
 
-            flash('Data not found.', 'danger');
+            flash('Data not found.', 'error');
 
             return redirect()->home();
         }

app/Http/Requests/Request.php

@@ -8,11 +8,16 @@ use Illuminate\Contracts\Validation\Validator;
 abstract class Request extends FormRequest
 {
     /**
-     * {@inheritdoc}
+     * Handle a failed validation attempt.
+     *
+     * @param  \Illuminate\Contracts\Validation\Validator  $validator
+     * @return void
+     *
+     * @throws \Illuminate\Validation\ValidationException
      */
     protected function failedValidation(Validator $validator)
     {
-        flash(__('validation.flash_message'), 'danger');
+        flash(__('validation.flash_message'), 'error');
         parent::failedValidation($validator);
     }
 }