paint.cc: fix drawing lane lines on sidebar

selfdrive/ui/paint.cc

@@ -344,7 +344,9 @@ static void ui_draw_world(UIState *s) {
   const UIScene *scene = &s->scene;
 
   nvgSave(s->vg);
-  nvgScissor(s->vg, s->video_rect.x, s->video_rect.y, s->video_rect.w, s->video_rect.h);
+
+  // Don't draw on top of sidebar
+  nvgScissor(s->vg, scene->viz_rect.x, scene->viz_rect.y, scene->viz_rect.w, scene->viz_rect.h);
 
   // Apply transformation such that video pixel coordinates match video
   // 1) Put (0, 0) in the middle of the video