🗃️ "Personal files" view

[AndyScherzinger]

Context

With heavy use of Group Folders, the All Files menu view is confusing for the user who gets his/her personal files mixing with organization files. Currently there is no option on top level to have filtered view only showing a user their own files.

Describe the solution you'd like

Add an entry Personal files to the left menu, directly below All files, showing:

• only user files
• no groupfolders
• no items shared from other people

[jancborchardt]

Updated title and description a bit, so it's clear it should be "Personal files" instead of "My".

Otherwise good to go, and let's go with an entry then as it's easier to understand than a setting.

[jancborchardt]

Also cc @tobiasKaminsky on this regarding adding this to mobile apps.