Sebastian Keller 8c40b48a09 shell/window-preview-layout: Fix memory leaks
The WindowInfo allocated when adding a window was not getting free'd
when the window was getting removed again or the layout was getting
disposed. Also the hash table in which the WindowInfos are stored was
not getting free'd on destruction either. Both could result in small
leaks after closing the overview.

Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5238
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2256>
2022-04-22 15:02:29 +00:00
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