feat(notifications): add dedicated page and localized rendering

src/App.tsx

@@ -22,6 +22,7 @@ import Tags from "./pages/Tags"
 import Reports from "./pages/Reports"
 import Timesheet from "./pages/Timesheet"
 import Logs from "./pages/Logs"
+import NotificationsPage from "./pages/Notifications"
 
 const MainLayout = () => {
   const [mobileSidebarOpen, setMobileSidebarOpen] = useState(false)
@@ -66,6 +67,7 @@ const router = createBrowserRouter([
           { path: "/profile", element: <Profile /> },
           { path: "/timesheet", element: <Timesheet /> },
           { path: "/reports", element: <Reports /> },
+          { path: "/notifications", element: <NotificationsPage /> },
           { path: "/logs", element: <Logs /> },
           { path: "/tags", element: <Tags /> },
           { path: "/workspaces", element: <Workspaces /> },