feat: added input textfield

lib/game/view/widgets/game_over_dialog.dart

@@ -20,11 +20,35 @@ class GameOverDialog extends StatelessWidget {
         width: 200,
         height: 200,
         child: Center(
+          child: Padding(
+            padding: const EdgeInsets.all(10),
             child: Column(
               mainAxisAlignment: MainAxisAlignment.center,
               children: [
-              const Text('Game Over'),
-              Text('Congratulations! your score is $score'),
+                Text(
+                  'Game Over',
+                  style: Theme.of(context).textTheme.headline4,
+                ),
+                const SizedBox(
+                  height: 10,
+                ),
+                Text(
+                  'Your score is $score',
+                  style: Theme.of(context).textTheme.headline6,
+                ),
+                const SizedBox(
+                  height: 10,
+                ),
+                const TextField(
+                  decoration: InputDecoration(
+                    border: OutlineInputBorder(),
+                    hintText: 'Enter your initials',
+                  ),
+                  maxLength: 3,
+                ),
+                const SizedBox(
+                  height: 10,
+                ),
                 TextButton(
                   onPressed: () {
                     //TODO: navigate to LeadersboardPage
@@ -35,6 +59,7 @@ class GameOverDialog extends StatelessWidget {
             ),
           ),
         ),
+      ),
     );
   }
 }