Set task position and show task on every drag end

The task position + visibility is only set when the bounds of the task
have changed. If the task is moved but returned to the same spot, the
task is moved offscreen during the drag, so we need to bring the task
back by setting position and showing the task.

Bug: 447398317
Flag: EXEMPT BUGFIX
Test: manual testing
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:50a0e4ab0099410d812d201e385c9af9ad7d62e9
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:322e42afff73daa2e0683ad11768084d613b2082
Merged-In: I077b2208858c8b1bce559ff400dd75779a98e646
Change-Id: I077b2208858c8b1bce559ff400dd75779a98e646