Restructure settings

[Georg9741]

The settings are a mess in my opinion and should be reconsidered.
I can't find sh#t as the options are scattered across the current settings.

And I would like the ability to change group names by clicking on the displayed name (after clicking the edit button) rather than only be able to change it in the group settings.

Find bookmarks in the search bar also makes only little sense. An option to deactivate it would be nice.