add notification, fix appbar,fix style subscription

lib/presentation/screens/map_screen.dart

@@ -696,13 +696,13 @@ class _MapScreenState extends State<MapScreen> {
             children: [
               _RoundIconButton(
                 icon: Icons.notifications_sharp,
-                onPressed: _onNotificationTap,
+                onPressed: () => context.push("/home/notifications"),
               ),
               const SizedBox(height: 12),
-              _RoundIconButton(
-                icon: Icons.directions_run,
+              _RoundButton(
+                imagePath: 'assets/icons/scooter_placemark.png',
                 onPressed: () => context.push("/home/current-rides-sheet"),
-              ),
+              )
             ],
           ),
         ),
@@ -810,6 +810,40 @@ class _RoundIconButton extends StatelessWidget {
   }
 }
 
+class _RoundButton extends StatelessWidget {
+  final String imagePath;
+  final VoidCallback onPressed;
+
+  const _RoundButton({
+    required this.imagePath,
+    required this.onPressed,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      width: 40,
+      height: 40,
+      decoration: BoxDecoration(
+        color: AppColors.darkBlue,
+        borderRadius: BorderRadius.circular(12),
+      ),
+      child: GestureDetector(
+        onTap: onPressed,
+        child: Center(
+          child: Image.asset(
+            imagePath,
+            width: 20,
+            height: 20,
+            fit: BoxFit.contain,
+            color: Colors.white,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
 class _CircleIconButton extends StatelessWidget {
   final IconData icon;
   final VoidCallback onPressed;