fix(overlay): stabilize macOS focus handoff and sidebar Yomitan pause

- Keep overlay visible during macOS foreground probe after overlay blur
- Hold sidebar hover-pause while a Yomitan lookup popup remains open

changes/fix-sidebar-yomitan-popup-pause.md

@@ -0,0 +1,4 @@
+type: fixed
+area: overlay
+
+- Kept playback paused for Yomitan lookup popups opened from the subtitle sidebar when popup auto-pause is enabled.

changes/macos-overlay-focus-handoff.md

@@ -0,0 +1,4 @@
+type: fixed
+area: overlay
+
+- Kept the macOS visible overlay stable when clicking from the overlay back into mpv.