Change engine to also call deinitializeGL for all screenspacerenderables

src/rendering/renderengine.cpp

@@ -1210,6 +1210,7 @@ void RenderEngine::removeScreenSpaceRenderable(ScreenSpaceRenderable* s) {
     );
 
     if (it != global::screenSpaceRenderables->end()) {
+        s->deinitializeGL();
         s->deinitialize();
         global::screenSpaceRootPropertyOwner->removePropertySubOwner(s);