Bug 971486 - [System2] Instantiable EdgeSwipeDetector r=alive
 Bug 1062730 - [NFC] Home button could not work well after receiving multiple websites which are shared via NFC
1. publish activeappchanged when app is changed in app_window_manager.js
2. stop tiltiing effect if receiving activeappchanged event
Merge pull request #23943 from cctuan/1062730

Bug 1062730 - [NFC] Home button could not work well after receiving multiple websites which are shared via NFC
Bug 1052447 - [Messages] when we're in an activity and we delete all messages in the thread, we should close the activity r=azasypkin
Bug 1071349 - Guard everything.me async settings locks for mock server r=daleharvey
Merge pull request #24309 from KevinGrandon/bug_1071349_async_guard

Bug 1071349 - Guard everything.me async settings locks for mock server
Merge pull request #24256 from KevinGrandon/bug_971486_system2_edge_swipe_detector

Bug 971486 - [System2] Instantiable EdgeSwipeDetector