- Added TimingManager class to provide precise timing for animations and frame pacing, addressing issues with ImGui::GetIO().DeltaTime.
- Updated event handling in the window management to use SDL_PollEvent for improved responsiveness.
- Integrated TimingManager into EditorManager, BackgroundRenderer, and WelcomeScreen for consistent delta time usage across the application.
- Enhanced animation updates to utilize accurate frame timing, improving visual performance and user experience.
- Removed references to the old `EnhancedPaletteEditor` and replaced it with the new `PaletteWidget` across various files, including canvas and context menu implementations.
- Updated CMake configurations to include the new `palette_widget` source files, ensuring proper integration into the build system.
- Refactored GUI code to enhance modularity and maintainability, improving the overall user experience in palette management and editing functionalities.
- Introduced new UI components for background rendering and editor selection dialogs, enhancing the application's graphical interface.
