Collections: File manager with roll back capability for collections -

[yknl]

As part of collections, the browser should include a file manager that can allows users to browse their collections data and eventually all app data. The file manager needs access to the app keys as well as encryption keys, so the logical place to implement it would be in the browser.

An MVP for the file explorer could display a list of all files in each selected collection. It can do this by reading the user's list of collections from the profile.json and perform a listFile on the respective storage buckets. The listFile operation may show all of the historical files, which should be filtered out. The individual file operations that can be performed on each file should be delete and rollback. In order to rollback, we need to show a list of the historical versions of the file sorted by time created. When rolling back, the selected version of the file can be sent to the Gaia hub using putFile and becomes the latest version.

[friedger]

See also https://github.com/blockstack/blockstack-browser/issues/1825