Show grouped bots in tabs

[ghost]

By @MAHDTech in #41:

What about multiple tabs for bot configuration? In my small usecase example I have two independant bot configurations, what about the ability to add multiple tabs within configuration, perhaps just above the "Edit" button. Rather than needing to zoom out making the names unreadable.

[ghost]

And additionally by @swilde:

A more advance feature I would like to see would be the possibility to group bots, and have an overview mode in which these groups are combined to an (nameable) "meta bot".

Having saveable, parametrized bot-groups which can then be reused as building-blocks would be even more great...