Add drawing sharing functionality and localization updates

- Implemented sharing options for drawings, including sharing to a public channel and specific rooms.
- Added confirmation dialogs for deleting drawings and sharing drawings.
- Enhanced the drawing toolbar to display a list of user's drawings with options to share or delete.
- Updated localization files for English, Spanish, French, Croatian, Italian, German, Slovenian, and other languages to include new strings related to drawing sharing and management.
- Introduced syncing of drawing messages with the DrawingProvider to restore missing drawings.
- Improved the drawing minimap preview to display a small preview of drawings in the toolbar.

lib/l10n/app_localizations_en.dart

@@ -1801,4 +1801,37 @@ class AppLocalizationsEn extends AppLocalizations {
   String newDrawingsShared(int count, String plural) {
     return 'Shared $count new drawing$plural';
   }
+
+  @override
+  String get shareDrawing => 'Share Drawing';
+
+  @override
+  String get shareWithAllNearbyDevices => 'Share with all nearby devices';
+
+  @override
+  String get shareToRoom => 'Share to Room';
+
+  @override
+  String get sendToPersistentStorage => 'Send to persistent room storage';
+
+  @override
+  String get deleteDrawingConfirm =>
+      'Are you sure you want to delete this drawing?';
+
+  @override
+  String get drawingDeleted => 'Drawing deleted';
+
+  @override
+  String yourDrawingsCount(int count) {
+    return 'Your Drawings ($count)';
+  }
+
+  @override
+  String get shared => 'Shared';
+
+  @override
+  String get line => 'Line';
+
+  @override
+  String get rectangle => 'Rectangle';
 }