Add option to hide the status bar (bottom bar) as well.

[didier]

Hey, lovely extension.

One feature I'd love to see included is a way to hide the status bar as well. Ideally, I'd want it to show once I hover near it.
Let me know if this is something you agree with.

[sirmspencer]

If there is a command to hide it, it should be easy to add.

[sequencerr]

workbench.action.toggleStatusbarVisibility

[sirmspencer]

I will accept a PR, but dont have the time to do it.