Enhance Overworld and Tile16 editors with new features and UI improvements

- Added context-aware options in the EditorManager for refreshing overworld and dungeon data, improving user interaction.
- Streamlined the OverworldEditor by removing redundant menu bars and integrating refresh options directly into the context menu.
- Improved the Tile16Editor by scaling tile displays for better visibility and enhancing the blockset canvas functionality.
- Introduced new bitmap property dialogs in the Canvas class, allowing users to view and edit bitmap and palette properties directly from the context menu.
- Refactored various UI elements for consistency and clarity, enhancing overall user experience.

src/app/gui/canvas.h

@@ -105,6 +105,12 @@ class Canvas {
   void ClearContextMenuItems();
   void SetContextMenuEnabled(bool enabled) { context_menu_enabled_ = enabled; }
   
+  // Enhanced view and edit operations
+  void ShowBitmapProperties(const gfx::Bitmap& bitmap);
+  void ShowPaletteEditor(gfx::SnesPalette& palette);
+  void SetZoomToFit(const gfx::Bitmap& bitmap);
+  void ResetView();
+  
  private:
   void DrawContextMenuItem(const ContextMenuItem& item);