Lukáš Tinkl 99b4f1d864 chore(ActivityCenterPopup): fix memleak
the AC popup was being recreated on every click and never destroyed,
leading to:
- memory leaks
- slow operation on opening (it's not trivial to create)

Now we keep a reference the the created popup object, thus making it
faster to appear on every (second) click. It gets destroyed via its
parent at the application shutdown
2023-04-17 15:42:59 +02:00
..