shorten comments

src/lib/components/Sidebar.svelte

@@ -146,8 +146,6 @@
 		const vault = $appConfig?.active_vault;
 		if (!vault) return;
 		if ($viewMode === 'notebook' && $activeNotebook?.relative_path === '') {
-			// On mobile, Back only changes panels. Reopen the still-selected notebook
-			// instead of treating the second tap as a request for All Notes. (issue #220)
 			if (isMobile) {
 				onViewChanged();
 				return;
@@ -1156,8 +1154,6 @@
 	.section {
 		flex: 1;
 		overflow-y: auto;
-		/* Keep the scrollport flush with the opaque sticky header so notebook names
-		   cannot show through the gap above it while scrolling. (issue #220) */
 		padding: 0 0 4px;
 		border-top: 1px solid var(--border-light);
 	}