User edit: add username to the form.

app/Http/Controllers/UserController.php

@@ -28,10 +28,11 @@ class UserController extends Controller
         $data = $request->validated();
 
         $user = $request->user();
+        $user->username = $data['username'];
         $user->password = Hash::make($data['password']);
         $user->save();
 
         return redirect()->route('user.index')
-            ->with('success', 'Password was updated');
+            ->with('success', 'Your account was updated!');
     }
 }