feat: implement full breadcrumb path navigation in Files tab

- Add breadcrumbPath array to app state for tracking folder hierarchy
- Rewrite updateBreadcrumb() to render full path: Home > folder > subfolder
- Each breadcrumb segment is clickable to navigate back to that level
- Current folder shown in bold (non-clickable), parent folders as links
- Reset breadcrumb path on tab switch, home navigation, and initial load
- Update navigateFolder/selectFolder to push to breadcrumb path
- Enhanced breadcrumb CSS with hover effects and dark mode support

static/css/recent.css

@@ -1,92 +1 @@
-/* Styles for the recent files feature */
-
-/* Recent indicator */
-.recent-indicator {
-    position: absolute;
-    top: 10px;
-    right: 10px;
-    width: 25px;
-    height: 25px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    border-radius: 50%;
-    color: #6c757d;
-    z-index: 5;
-
-    [dir='rtl'] & {
-        left: 10px;
-        right: unset;
-    }
-}
-
-/* Styles for the recent view items */
-.recent-item {
-    position: relative;
-}
-
-/* Adjustments for grid view */
-.file-card.recent-item {
-    border-left: 3px solid #6c757d;
-
-    [dir='rtl'] & {
-        border-right: 3px solid #6c757d;
-        border-left: unset;
-    }
-}
-
-/* Adjustments for list view */
-.list-header.recent-header {
-    grid-template-columns: 30px minmax(200px, 2fr) 1fr 1fr 120px;
-}
-
-.file-item.recent-item {
-    position: relative;
-    grid-template-columns: 30px minmax(200px, 2fr) 1fr 1fr 120px;
-}
-
-.file-item.recent-item .recent-indicator {
-    position: relative;
-    top: 0;
-    right: 0;
-    width: 30px;
-    height: 30px;
-}
-
-/* Styles for the recent-specific empty state */
-.recents-empty-state {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    justify-content: center;
-    padding: 50px 20px;
-    text-align: center;
-    color: #6c757d;
-}
-
-.recents-empty-state i {
-    font-size: 48px;
-    color: #6c757d;
-    margin-bottom: 20px;
-    opacity: 0.6;
-}
-
-.recents-empty-state p {
-    margin-bottom: 10px;
-    max-width: 400px;
-}
-
-/* Tooltip for access time */
-.recent-item .file-info {
-    cursor: help;
-}
-
-/* Animation for recent files */
-.recent-item {
-    animation: recent-fade-in 0.3s ease;
-}
-
-@keyframes recent-fade-in {
-    from { opacity: 0; transform: translateY(10px); }
-    to { opacity: 1; transform: translateY(0); }
-}
+@import url("./views/recent.css");