Extract logic for `settledProgressFullscreen` to `TaskView` to reuse it in subclasses.
`DesktopTaskView` now uses `updateSettledProgressFullscreen` instead of updating `settledProgressFullscreen` directly.
Fix: 406236028
Flag: com.android.launcher3.enable_overview_icon_menu
Test: Manual. Drag a Desktop tile to launch.
Change-Id: I31bab76e44dbe5219c65b9dc3654e0988bf77fef