[Feature Request] Hide tab groups.

[heit0r]

Is your feature request related to a problem? Please describe.
There should be a way to hide them in order to improve user focus.

Describe the solution you'd like
To be able to hide all tab groups in one tab button, for instance.

Describe alternatives you've considered
To be able to hide all tab groups in one tab button, for them to be dynamically transferred back and forth to the tabs bar.

To show/hide all tab groups in a totally hidden way accessed by a shortcut, let's say, Ctrl + G or Ctrl + Shift + G.

To show/hide all tab groups in a menu like bookmarks button.

To show/hide all tab groups in a left or right panel.

Additional context
We can type shorter names in order to save space, like so:

But this can easily become an issue when we need larger names and more groups: