Fix border diff border radii in panels

Annabel Dunstone Grayrequested to merge
diff-border-radius into master

What does this MR do and why?

Fixes border radius of diff files

Screenshots or screen recordings

Before After
Screenshot_2025-09-03_at_11.55.32_AM Screenshot_2025-09-03_at_12.05.46_PM
Screenshot_2025-09-03_at_11.55.51_AM Screenshot_2025-09-03_at_11.47.16_AM

How to set up and validate locally

  • Toggle new UI
  • Check diffs in MR

Links

Edited by Annabel Dunstone Gray

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