SDL3 update (#787)

* Update to SDL3

* Add XTest development dependency for SDL3

* Preserve native entry points with SDL3

* Document SDL3 XTest dependency

src/graphics/presentation/systemOverlay.h

@@ -7,6 +7,7 @@
 #include <memory>
 
 union SDL_Event;
+struct SDL_Window;
 
 namespace Libs::Graphics {
 
@@ -17,7 +18,7 @@ struct SystemOverlayVisualState {
 	uint64_t revision;
 };
 
-void                     InitializeSystemOverlayInput();
+void                     InitializeSystemOverlayInput(SDL_Window* window);
 void                     ShutdownSystemOverlayInput();
 bool                     ProcessSystemOverlayInput(const SDL_Event& event);
 SystemOverlayVisualState GetSystemOverlayVisualState() noexcept;