🔎 Add searchbar for groups on the sidebar

Proposed draft

Description:

There are 2 boxes on the sidebar:
- Group box on top (a box of groups/tags).
- Settings box on bottom.
When a user has a large number of groups, 2 things happen:
- Settings box is far away on the bottom. You have to scroll all the group to get the settings.
- It's very uncomfortable and slow to get a group.

Desired behaviour:

Add a searchbar for groups on the top of this box. And maybe display only 5-10 groups by default.
Maybe, change the order of the 2 boxes: settings on top and groups on bottom.

This issue is solved in Remember Me 6 with a dedicated drawer for labels/groups on the right.