refactor: Enhance Map Properties System with Graphics Management and Refresh Logic

- Introduced OverworldGraphicsManager to handle graphics loading, refreshing, and texture management for the overworld editor.
- Updated MapPropertiesSystem to integrate new graphics management features, ensuring proper refresh order for map properties and graphics.
- Added methods for forcing graphics refresh and handling sibling map graphics, improving the responsiveness of the editor.
- Enhanced UI elements in the MapPropertiesSystem for better user experience, including tooltips and organized layouts.
- Updated CMake configuration to include new graphics manager files, ensuring proper integration into the build system.

src/app/editor/editor_library.cmake

@@ -36,6 +36,7 @@ set(
   app/editor/graphics/gfx_group_editor.cc
   app/editor/overworld/entity.cc
   app/editor/overworld/overworld_entity_renderer.cc
+  app/editor/overworld/overworld_graphics_manager.cc
   app/editor/system/settings_editor.cc
   app/editor/system/command_manager.cc
   app/editor/system/extension_manager.cc