Fix arrange windows

[sce]

First patch fixes some of the debugging output and adds some debug output line for panels.

Second patch makes sure width and height are properly set which is actually used later on (after the switch statement). (And also fixes x/y for workspace for left/right panels.)

This should properly restore the behaviour of arrange_windows to what it used to be.

Ref #358 , @mikkeloscar please test/confirm...

[ddevault]

LGTM, but holding off on merge pending @mikkeloscar's feedback.

[sce]

I'm going to mention it here: I say that the second patch partially fixes swaybar irregularities because it restores the behaviour that my previous code changed. So far so good, however, what is actually happening is that the surface for swaybar has no size before it becomes visible for the first time (this is confirmed by the new debug output), and therefore the workspace will not "move out of the way". Once it becomes visible the surface correctly reports its size and the workspace adjusts accordingly.

So my theory is that it's only working correctly because gaps are being used. So if e.g. outer_gaps are in play then the swaybar will be immediately visible, swaybar will create a surface, and the workspace will move out of the way. (This has been the behaviour all along.)

[ddevault]

I'm not sure I follow. Is there something wrong with that behaviour?

[sce]

The surface from the swaybar is still covered by the window on the workspace, so no surface will be created, and nothing is shown, unless something triggers it to create it, like e.g. a part of the surface becomes visible (which happens automatically if gaps are in play). That's my theory at least. I didn't mention this at once because I believe this has been the behaviour all along.

[ddevault]

I think I understand better now, thanks for pointing it out.

[mikkeloscar]

Except what you have explained above it LGTM. The behavior is as "expected" now.