feat: change tab title, add favicon, and fix pinned folder live refresh

frontend/public/favicon.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#6366f1" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-hard-drive"><line x1="22" x2="2" y1="12" y2="12"/><path d="M5.45 5.11 2 12v6a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2v-6l-3.45-6.89A2 2 0 0 0 16.76 4H7.24a2 2 0 0 0-1.79 1.11z"/><line x1="6" x2="6.01" y1="16" y2="16"/><line x1="10" x2="10.01" y1="16" y2="16"/></svg>

frontend/src/app/layout.tsx

@@ -2,8 +2,11 @@ import type { Metadata } from 'next';
 import './globals.css';
 
 export const metadata: Metadata = {
-  title: 'Drive — Your Personal Cloud',
+  title: "Eli's Drive",
   description: 'A high-performance, self-hosted file storage and management platform.',
+  icons: {
+    icon: '/favicon.svg',
+  },
 };
 
 export default function RootLayout({

frontend/src/components/FileExplorer.tsx

@@ -245,6 +245,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
   const [pinnedExpanded, setPinnedExpanded] = useState(false);
   const [pinnedOrder, setPinnedOrder] = useState<string[]>([]);
   const [dragOverPinnedItem, setDragOverPinnedItem] = useState<string | null>(null);
+  const [pinnedRefreshCounter, setPinnedRefreshCounter] = useState(0);
   const [selectionBox, setSelectionBox] = useState<{ startX: number; startY: number; currentX: number; currentY: number } | null>(null);
   const [initialSelectedFiles, setInitialSelectedFiles] = useState<Set<string>>(new Set());
   const searchTimeoutRef = useRef<NodeJS.Timeout | undefined>(undefined);
@@ -437,7 +438,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
         setPinnedFiles(items);
       }).catch(console.error);
     }
-  }, [pinnedExpanded, pinnedOrder]);
+  }, [pinnedExpanded, pinnedOrder, pinnedRefreshCounter]);
 
   async function handlePinnedDragEnd(sourcePath: string, destPath: string) {
     const newOrder = [...pinnedOrder];
@@ -608,6 +609,7 @@ export default function FileExplorer({ onLogout }: FileExplorerProps) {
   async function handlePin(file: FileItem) {
     await api.togglePin(file.path);
     loadFiles(undefined, true);
+    setPinnedRefreshCounter(c => c + 1);
   }
 
   async function handleRename(path: string, originalName: string, isDir: boolean) {