Closes #9778: Site permission settings item height set to 48dp

[marcellogalhardo]

Increases Site Permission, Quick Settings item height to 48dp for compliance with "Google Accessibility Scanner". This is a small UI changed and no tests are required to change.

Fix #9778.

Before	After

Pull Request checklist

• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features. In addition, it includes a screenshot of a successful accessibility scan to ensure no new defects are added to the product.

To download an APK when reviewing a PR:

1. click on Show All Checks,
2. click Details next to "Taskcluster (pull_request)" after it appears and then finishes with a green checkmark,
3. click on the "Fenix - assemble" task, then click "Run Artifacts".
4. the APK links should be on the left side of the screen, named for each CPU architecture

[firefoxci-taskcluster]

No Taskcluster jobs started for this pull request

The `allowPullRequests` configuration for this repository (in `.taskcluster.yml` on the
default branch) does not allow starting tasks for this pull request.

[eliserichards]

This looks great! I will reach out to get a UX review on this :)

[topotropic]

LGTM, thanks!

[codecov-io]

Codecov Report

Merging #17134 (c871e4f) into master (ca36ffe) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master   #17134   +/-   ##
=========================================
  Coverage     30.81%   30.81%           
  Complexity     1239     1239           
=========================================
  Files           455      455           
  Lines         18668    18668           
  Branches       2615     2615           
=========================================
  Hits           5753     5753           
  Misses        12453    12453           
  Partials        462      462           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 6962c96...c871e4f. Read the comment docs.

[gabrielluong]

@marcellogalhardo Thank you for the patch!