fix full blank password

Author: nguyentranchung

app/Filament/Resources/UserResource/Pages/EditUser.php

@@ -16,4 +16,13 @@ protected function getHeaderActions(): array
             Actions\DeleteAction::make(),
         ];
     }
+
+    protected function mutateFormDataBeforeSave(array $data): array
+    {
+        if (! $data['password']) {
+            unset($data['password']);
+        }
+
+        return $data;
+    }
 }