(fix): remove unused dependencies

(fix): remove dead code
(fix): remove unused exports

apps/web/src/routes/app/useShowMobileNavbar.ts

@@ -0,0 +1,14 @@
+import { useLocation, useMatches } from "@tanstack/react-router";
+
+export function useShowMobileNavbar(): boolean {
+  const matches = useMatches();
+  const location = useLocation();
+
+  return matches.some(
+    (match) =>
+      match.pathname === location.pathname &&
+      // Router staticData is app-defined and not typed by the route matcher here.
+      // @ts-expect-error App route metadata
+      match.staticData?.showMobileNavbar === true,
+  );
+}