feat: Add support for group tabs

[jackylamhk]

Feature description

I would like the option to have groups show up in horizontal group tabs on top of the screen.

Motivation

As the number of services grow, it becomes harder to reach to the bottom. Search helps, but tabs should get me there faster if I’m looking for a specific group.

Acknowledgements

• [X] This issue is not a duplicate of an existing feature request.
• [X] I have chosen an appropriate title.
• [X] All requested information has been provided properly.