- [NEW] Afegit clipboard al backend

- [NEW] surfaces ara usa un vector dinàmic
- [FIX] Ajustades dereferenciacions per a arreglar la caiguda de rendiment

source/backends/SDL3/video.cpp

@@ -65,7 +65,9 @@ namespace backend
             uint32_t *pixels;
             int pitch;
             SDL_LockTexture(tex_back, NULL, (void**)&pixels, &pitch);
-            for (uint32_t i=0;i<mini::surf::state.screen_surface->size;++i) pixels[i] = mini::pal::palette[mini::surf::state.screen_surface->p[i]];
+            auto &s = mini::surf::state.surfaces[SCREEN];
+            uint8_t *p = s.p;
+            for (uint32_t i=0;i<s.size;++i) pixels[i] = mini::pal::palette[p[i]];
             SDL_UnlockTexture(tex_back);
             SDL_RenderTexture(renderer, tex_back, NULL, NULL); //NEW