Feat: FileManager (#98) (#703)

* feat: add file manager module

- Complete file manager implementation with UI/UX
- Add drive management functionality
- Add file upload/download with progress tracking
- Add stamp integration and handling
- Add bulk operations and context menus

Co-authored-by: Roland Seres <roland.seres90@gmail.com>
Co-authored-by: nidishk <nidishkrishnan45@gmail.com>

src/modules/filemanager/components/NotificationBar/NotificationBar.scss

@@ -0,0 +1,11 @@
+.fm-notification-bar {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+
+  &:hover {
+    cursor: pointer;
+    opacity: 0.8;
+    text-decoration: underline;
+  }
+}