Merging ub-launcher3-qt-r1-dev, build 5749827

Test: Manual

Bug:136282913 P1 Swipe up from Assistant Fulfillment Card Jank
Bug:137129923 P1 Pixel launcher is leaking memory
Bug:137161198 P1 Unable to pull notification panel down with a swipe on home screen
Bug:137253043 P1 "Pixel Launcher keeps stopping" when scrolling through recent apps
Bug:137487381 P1 Overview goes back to fullscreen when swiping up during transition
Bug:137836033 P4 Fail to stop music due to "Swipe failed to receive an event for the swipe end"
Bug:138152531 P2 [Android Q][04713598] Launcher test cases are failed
Bug:138236583 P1 Icon scale is wrong when dragging from all apps or folders
Bug:138251824 P1 Flake: want to switch from background to overview; Swipe failed to receive an event for the swipe end
Bug:138252347 P1 qt-r1-dev Pixel Launcher flag ENABLE_HINTS_IN_OVERVIEW is Disable by Default
Change-Id: Idd0e987d26e1ffc75cdb9f90e9c08c26bb8c6503