Refactor widget directory structure by organizing tiles and buttons

- Move `GameTile` and `DoubleRowInfoTile` to `presentation/widgets/tiles/`
- Move `CustomWidthButton` and `QuickCreateButton` to `presentation/widgets/buttons/`
- Update import paths in `HomeView`, `GroupsView`, `GameHistoryView`, and `CreateGroupView`

lib/presentation/widgets/buttons/quick_create_button.dart

@@ -0,0 +1,33 @@
+import 'package:flutter/material.dart';
+import 'package:game_tracker/core/custom_theme.dart';
+
+class QuickCreateButton extends StatefulWidget {
+  final String text;
+  final VoidCallback? onPressed;
+  const QuickCreateButton({
+    super.key,
+    required this.text,
+    required this.onPressed,
+  });
+
+  @override
+  State<QuickCreateButton> createState() => _QuickCreateButtonState();
+}
+
+class _QuickCreateButtonState extends State<QuickCreateButton> {
+  @override
+  Widget build(BuildContext context) {
+    return ElevatedButton(
+      onPressed: widget.onPressed,
+      style: ElevatedButton.styleFrom(
+        minimumSize: const Size(140, 45),
+        backgroundColor: CustomTheme.primaryColor,
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+      ),
+      child: Text(
+        widget.text,
+        style: const TextStyle(fontWeight: FontWeight.bold, fontSize: 16),
+      ),
+    );
+  }
+}