Shorten test names to be under 100 chars.

- Replace "flagEnabled" wtih "withFeature"
- Replace "flagDisabled" with "noFeature"
- Replace cases where above two wasn't enough to not use flag status as
  we can see the flag status through the annotation either way.

Bug: 352266521
Test: atest DesktopTasksController
Flag: EXEMPT Refactor
Change-Id: I764b0d18fbc94718e5d9769886f66a8a329b2919