Stop Trigger UI when triggering a direct action

This stops the trigger UI and trigger script coordinator when a direct
action is requested and prevents reuse of the trigger UI bottom sheet
content by the script UI triggered by the direct action.

Bug: b:209399694
Change-Id: I9d1046a8fe79c061a75fa496912ed3480bfc2211
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3420909


Reviewed-by: Luca Hunkeler <hluca@google.com>
Reviewed-by: Clemens Arbesser <arbesser@google.com>
Commit-Queue: David Bengoa <dbengoa@google.com>
Cr-Commit-Position: refs/heads/main@{#970713}