renamed NewPipe's language into App language, and same for all the
concerning thing (keys, comments…)
we now call assureCorrectAppLanguage(CONTEXT) in activities needing it
instead of changeAppLanguage(getAppLocale(CONTEXT), RESOURCES)
changeAppLanguage becomes private.
-Added button to wipe metadata cache.
-Added more paddings on player buttons.
-Added new animations to main player secondary controls and play queue expand/collapse.
-Refactored play queue item touch callback for use in all players.
-Improved MediaSourceManager to better handle expired stream reloading.
-[#1186] Changed live sync button text to "LIVE".
-Removed MediaSourceManager loader coupling on main players.
-Moved service dependent expiry resolution to ServiceHelper.
-[#1186] Fixed livestream timeline updates causing negative time position.
-[#1186] Fixed livestream not starting from live-edge.
-Fixed main player system UI not retracting on playback start.
-Added toggle to enable auto-queuing.
-Modified main video player to only pause the video onPause.
-Fixed main video player not saving play queue state onStop.
