Add minor UX improvements

src/components/Gallery.tsx

@@ -19,12 +19,6 @@ export default function Gallery({
     string | null
   >(null);
 
-  /*
-   * Update the URL without causing a Next.js navigation.
-   *
-   * router.replace() would render the server page again, causing
-   * /api/images and /api/tags to be requested again.
-   */
   const setFullScreenImage = useCallback((imageId: string | null) => {
     setFullScreenImageIdState(imageId);
 
@@ -43,7 +37,6 @@ export default function Gallery({
     );
   }, []);
 
-  // Read a fullscreen image from the initial URL.
   useEffect(() => {
     const synchronizeWithUrl = () => {
       const params = new URLSearchParams(window.location.search);
@@ -59,7 +52,6 @@ export default function Gallery({
     };
   }, []);
 
-  // Prevent the gallery page from scrolling while the modal is open.
   useEffect(() => {
     if (!fullScreenImageId) {
       return;