refactor: Consolidate Canvas Documentation and Update Structure

- Streamlined the canvas documentation by consolidating multiple guides into a single comprehensive overview.
- Updated the canvas architecture section to reflect new features and interaction modes, enhancing clarity for users.
- Improved API patterns and integration steps for editors, ensuring consistency across documentation.
- Removed outdated content and added new sections on automation and debugging, aligning with recent code changes.
- Adjusted file paths in the documentation to match the current project structure, ensuring accurate references.

src/app/gui/canvas/canvas_modals.cc

@@ -7,7 +7,7 @@
 #include "app/gfx/performance/performance_profiler.h"
 #include "app/gfx/performance/performance_dashboard.h"
 #include "app/gui/widgets/palette_widget.h"
-#include "app/gui/bpp_format_ui.h"
+#include "app/gui/canvas/bpp_format_ui.h"
 #include "app/gui/icons.h"
 #include "imgui/imgui.h"
 

src/app/gui/canvas/canvas_modals.h

@@ -7,7 +7,7 @@
 #include "app/gfx/bitmap.h"
 #include "app/gfx/snes_palette.h"
 #include "app/gfx/bpp_format_manager.h"
-#include "app/gui/canvas_utils.h"
+#include "app/gui/canvas/canvas_utils.h"
 #include "imgui/imgui.h"
 
 namespace yaze {