Minor wording and style changes

src/routes/+page.svelte

@@ -84,6 +84,9 @@ onMount(() => {
         <button
             type="button"
             on:click={() => {
+                if (!confirm('Are you sure you want to clear IndexedDB databases, localStorage, and sessionStorage? This will also reload the page.')) {
+                    return;
+                }
                 // Clear Indexed DB
                 indexedDB.deleteDatabase('ae_archives_db'); // Archives module
                 indexedDB.deleteDatabase('ae_core_db');