Server: Enable note versioning

Right now if you store in Database+Files mode, you can browse the notes in the Files app and they will be versioned after edits. This was a great find today, after the Android version kind of ruined a note on me.

However,
1) There isn't a way to access these versions from the Notes App
2) The database version seems to take priority here. If you revert the file from the Files app, it is successful but Notes keeps loading the version from Database.

I dont know if theres a way to access that versioning system with your Database storage as well (as to not reinvent the wheel). If not then perhaps the easiest thing to do would be to let files take priority over DB if theres a difference.