Fixed image discussion styling (!23127) · Merge requests · GitLab.org / GitLab FOSS · GitLab

What does this MR do?

Fixes the styling of image discussions in Firefox, the height was causing it to overlay.

Also fixes some styling bugs caused by the discussion styling changes.

What are the relevant issue numbers?

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/54110

Does this MR meet the acceptance criteria?

Changelog entry added, if necessary
Documentation created/updated
Tests added for this feature/bug
Conforms to the code review guidelines
Conforms to the merge request performance guidelines
Conforms to the style guides
Conforms to the database guides
Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.