Well, before Vue6, there was Vue5, 4,3,2,1, and before you came to the world of Vue, this world already existed, as shocking as it may sound, with many users who answered a survey at cornucopia3d regarding content. And many requested a way to shop from within Vue.
Now if the ghost icon is not enough for you, here's what you can do:
In Vue, disable "check for new content" in the files, preferences menu and quit Vue.
Do a windows search ( if you're on mac, you'll know how to translate it to the apple world) and search for files that start with a ~~ in your Vue directory.
Then delete all these files.