[Glitch] Fix JavaScript console error on upload editing status

Port c95d9aab56 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/compose/components/upload.js

@@ -18,7 +18,7 @@ export default class Upload extends ImmutablePureComponent {
     media: ImmutablePropTypes.map.isRequired,
     onUndo: PropTypes.func.isRequired,
     onOpenFocalPoint: PropTypes.func.isRequired,
-    isEditingStatus: PropTypes.func.isRequired,
+    isEditingStatus: PropTypes.bool.isRequired,
   };
 
   handleUndoClick = e => {