Merging ub-launcher3-qt-r1-dev, build 5718001

Test: Manual

Bug:135383592 P1 Notification line was not displayed at top of screen
Bug:136044361 P2 Sometimes icons in desktop disappear during animation
Bug:136733573 P1 Unable to do any interactions shortly after swiping home
Change-Id: I4d6c1ad5f0443e9b5d9b3f293ceb288a37cac1d4