Add an option to show left sidebar collasped by default

[BaBoWaGa]

Checklist

• [X] I've searched through the current issues to make sure this feature hasn't been requested already.

Motivation

Perhaps I have not found where to change the possibility of having the tool menu, the left-hand sidebar, closed by default.

Suggested solution

It would be a good thing to be able to decide on this aspect of the suite as well

Alternatives considered

No response