feat: Enhance emulator UI and performance features

- Added new UI components for the emulator, including dedicated panels for CPU and APU debugging, improving user interaction and debugging capabilities.
- Implemented a caching mechanism for rendered objects in the DungeonCanvasViewer to optimize performance and reduce rendering time.
- Updated the CMake configuration to include new UI source files, ensuring proper organization and build management.
- Enhanced the theme manager with improved color definitions for better visibility and consistency across the UI.
- Refactored the emulator interface to delegate rendering tasks to the UI layer, streamlining the codebase and improving maintainability.

tools/test_helpers/dungeon_test_harness.cc

@@ -37,7 +37,7 @@ class DungeonTestHarness {
     auto& ppu = snes.ppu();
 
     // Run emulator until the main game loop is reached
-    int max_cycles = 5000000;  // 5 million cycles should be plenty
+    int max_cycles = 15000000;  // 15 million cycles should be plenty
     int cycles = 0;
     while (cycles < max_cycles) {
       snes.RunCycle();