refactor: remove debug console logs and improve TypeScript types

- Remove build-time console.log statements from compileMDX.ts
- Replace 'any' type with proper ReturnType<typeof setTimeout> in usePendingRoute.ts
- Improves code quality and type safety

Author: ShubhamPatra

src/hooks/usePendingRoute.ts

@@ -17,7 +17,7 @@ const usePendingRoute = () => {
   const [pendingRoute, setPendingRoute] = useState<string | null>(null);
   const currentRoute = useRef<string | null>(null);
   useEffect(() => {
-    let routeTransitionTimer: any = null;
+    let routeTransitionTimer: ReturnType<typeof setTimeout> | undefined = undefined;
 
     const handleRouteChangeStart = (url: string) => {
       clearTimeout(routeTransitionTimer);

src/utils/compileMDX.ts

@@ -45,16 +45,8 @@ export default async function compileMDX(
   );
   const cached = await store.get(hash);
   if (cached) {
-    console.log(
-      'Reading compiled MDX for /' + path + ' from ./node_modules/.cache/'
-    );
     return cached;
   }
-  if (process.env.NODE_ENV === 'production') {
-    console.log(
-      'Cache miss for MDX for /' + path + ' from ./node_modules/.cache/'
-    );
-  }
 
   // If we don't add these fake imports, the MDX compiler
   // will insert a bunch of opaque components we can't introspect.