Fix popup closing immediately after showing on some Linux WMs #50712
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When a popup is going to be closed, switch focus to the parent only if the closing popup is still being focused.
Fixes some cases with specific WMs where due to the order of events, a new popup could be immediately unfocused because a previously opened and closed popup is switching focus to the parent.
Also added a few more logs to help investigate this kind of issue.
Fixes #50367
Tested on ArchLinux with Gnome (no regression) and i3 (fixes the issue).
Kudos to @Houkime whose thorough investigation lead to finding this fix.