Add tooltip to workspace folder display

[uwegeercken]

Problem description

The workspace folder is displayed in the sidebar, After some time one may forget where the workspace folder is actually located and there does not seem to be a way to see that.

Preferred solution

Add a tooltip to the workspace folder name, so that when one hovers over it the full path is shown.

Alternatives

Alternatively add a right-click menu with "Reveal in Filemanager" like was done for the flows.