Fix termination errors

Cleanup for objects destruction and process termination.
This is still work in progress, I don't like the way it's
handled right now.

red_scarf_engine/src/main.c

@@ -1,3 +1,4 @@
+#include <SDL3/SDL_init.h>
 #include "graphics/rse_graphics.h"
 #include "utilities/errors_common.h"
 #include "utilities/logger.h"
@@ -23,6 +24,7 @@ int main(int argc, char** argv)
     }
 
     SDL_WaitThread(graphics_task, NULL);
+    SDL_Quit();
 
     return 0;
 }