Allow events (scroll, click) on the entire bar

[ToxicMushroom]

Is your feature request related to a problem? Please describe.
Would make it easier to switch workspaces for me since I then no longer have to aim for the small corner which I can overshoot into my next monitor, undershoot because I'm trying to not go into my next monitor. It's easier to throw your cursor up in the empty space of the bar and scroll there for workspace switching.

Describe the solution you'd like
Allowing these empty parts to trigger commands would allow users to add this themselves.

Describe alternatives you've considered
Adding a big expanding module that fills the remaining space or something