[wf-panel] won't lose focus and hide after clicking another window

[NamorNiradnug]

When a popup is shown (volume, calendar, etc) the panel won't lose focus keyboard after clicking another window. Moving or resizing the window makes the window to grab the focus and panel closes the popup and hides.

Upstream wf-panel

> wayfire --version
0.8.0-34a0eb54 (Jan  6 2023, branch 'master')