Replace concatenated string with template literal.

sveltejs/src/ProjectBrowser.svelte

@@ -185,7 +185,7 @@
 
   function onPageChange(event) {
     const activePages = document.querySelectorAll(
-      '[aria-label="Page ' + ($page + 1) + '"]',
+      `[aria-label="Page ${$page + 1}"]`,
     );
     if (activePages) {
       const activePage = activePages[0];