Backup All Maps/Version Control

Right now there are a few bugs which cause a little chaos. In the future there may be bugs that are not recoverable. It would be nice to a Backup All Maps button next to the Load from Offline Backup button on the scenes (maps) tab.

Alternatively integrating with some kind of version control as either a first party solution or working with something like github/gitlabs would provide some measure of backup for pro users should something accidentally corrupt their maps.