[Collaboration] Default enable DATA_SHARING for TabGridDialogTest

The 3-dot menu's touch area is clipped by the rounded corner of the
dialog it is hosted in. The implementation is to UX spec, but espresso
doesn't like the fact < 90% of the view is visible. Add in a
`relaxedClick` ViewAction to bypass this issue.

Fixed: 406341593
Change-Id: Icd898353c679f7e93a97064cd802077bb8b53a55
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6394963
Reviewed-by: Dan Polanco <polardz@google.com>
Auto-Submit: Calder Kitagawa <ckitagawa@chromium.org>
Commit-Queue: Dan Polanco <polardz@google.com>
Commit-Queue: Calder Kitagawa <ckitagawa@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1438381}