fix:大屏尺寸-更新问题

src/views/components/FileProps.vue

@@ -337,6 +337,7 @@ const selectedSreen = (item: any) => {
   meta2d.store.data.width = item.width;
   meta2d.store.data.height = item.height;
   // meta2d.store.patchFlagsBackground = true;
+  meta2d.canvas.canvasTemplate.bgPatchFlags = true;
   meta2d.render();
   openData();
 };
@@ -371,6 +372,8 @@ const changeValue = (e: any, key: string) => {
   if (key === 'background') {
     // meta2d.store.patchFlagsBackground = true;
     meta2d.setBackgroundColor(e);
+  } else if (key === 'width' || key === 'height') {
+    meta2d.canvas.canvasTemplate.bgPatchFlags = true;
   }
   meta2d.render();
   openData();