Workspace like sidebar (e.g. Slack / Discord)

The Problem

For each account it would be good to have dedicated workspace like environment as seen in other apps like Slack / Discord.

Proposed Solution

The sidebar need not remain in side (lol) but like a workspace switcher.


See that left-most sidebar…? It would be cool if those where given like GMail1, GMail2, Hotmail etc…

(Originally posted by joe733 on GitHub.)