fix: image-related fixes (#4147)

* flush queues on portal close

* fix mouse broadcast race condition

* stop mutating image elements when updating status

to fix race condition when closing/opening collab room

* check `files` when resolving `LayerUI`

* fix displaying AbortError

src/components/LayerUI.tsx

@@ -845,6 +845,7 @@ const areEqual = (prev: LayerUIProps, next: LayerUIProps) => {
     prev.renderCustomFooter === next.renderCustomFooter &&
     prev.langCode === next.langCode &&
     prev.elements === next.elements &&
+    prev.files === next.files &&
     keys.every((key) => prevAppState[key] === nextAppState[key])
   );
 };