Allow previously added Widgets to be re-added to Figma files through the right editor pane

Would be awesome if there was a way for users and developers to specify widgets they would like to quickly re-add to their files from the right editor page, like we can for plugins today.

Main use-case for this would be to re-add discrete widgets like Bookmarks or Navigation Buttons to the Figma file without having to search for it in the Assets Panel or having to duplicate it from different pages of the same file.