Add visual cues to screenshots in Merge Request changes documentation

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Problem to solve

The original screenshots in the following sections of the Merge request changes documentation are visually clear but make it hard for readers to notice the specific icons or areas mentioned in the descriptive text:

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Readers might miss which exact icon or button the text refers to, especially when scanning the image quickly or on smaller screens.

Further details

Proposal

Update the existing screenshots to include red arrows (visual cues) that point to the mentioned icons or buttons, following the GitLab Documentation Style Guide for callouts: https://docs.gitlab.com/development/documentation/styleguide/#add-callouts

• Use red arrows in color #EE2604, line width 3 pt, and consistent style.
• Keep filenames and paths the same to avoid broken links.
• Replace only the image content (no text or layout changes).

Sample Image Modification

Original image:

Proposed changes:

Who can address the issue

Other links/references