Add note refresh

Author: DavideRutigliano

src/frontend/lib/providers/note_editor_provider.dart

@@ -1527,17 +1527,6 @@ class NoteEditorProvider with ChangeNotifier implements NoteEditorViewModel {
     }
   }
 
-  @override
-  void updateBlockCache(List<Block> blocks) {
-    for (final block in blocks) {
-      // Only update if this block belongs to an active note
-      if (_noteId == block.noteId || _activeNoteIds.contains(block.noteId)) {
-        _blocks[block.id] = block;
-        _documentBuilder.registerServerBlock(block);
-      }
-    }
-  }
-
   @override
   void commitAllContent() {
     _logger.debug('Committing content for all blocks');

src/frontend/lib/screens/note_editor_screen.dart

@@ -361,6 +361,15 @@ class _NoteEditorScreenState extends State<NoteEditorScreen> {
         title: '',  // Empty title as we have our own title field
         showBackButton: false,  // No back button in app bar
         actions: [
+           IconButton(
+            icon: const Icon(Icons.refresh_outlined),
+            tooltip: 'Refresh note content',
+            onPressed: () => _noteEditorViewModel.updateBlocks(
+              _noteEditorViewModel.blocks,
+              preserveFocus: true,
+              markAsModified: false,
+            ),
+          ),
           IconButton(
             icon: const Icon(Icons.upload_file),
             tooltip: 'Import Markdown',

src/frontend/lib/viewmodel/note_editor_viewmodel.dart

@@ -70,7 +70,6 @@ abstract class NoteEditorViewModel extends BaseViewModel {
   Map<String, dynamic> getPaginationInfo(String noteId);
 
   // Server sync and events
-  void updateBlockCache(List<Block> blocks);
   void commitAllContent();
   Future<void> fetchBlockFromEvent(String blockId);