fix(overlay): cancel pending window transitions and timing reviews (#262)

changes/fix-timing-review-cancellation.md

@@ -0,0 +1,4 @@
+type: fixed
+area: anki
+
+- Closing the overlay while media timing review is still loading now cancels setup and modal retries, restores playback if the review paused it, and cleans up the hidden preview player.

changes/runtime-ownership.md

@@ -0,0 +1,4 @@
+type: fixed
+area: overlay
+
+- Cancel pending Linux overlay window replacements during teardown so a delayed close callback cannot reopen the overlay.