fix(web): add spacing above PR detail metadata - #28573

Eligibility
Adds spacing between the PR title and its metadata/action row. This is a localized visual adjustment with no changes to actions, data, or product defaults.

Additional Thinking

Your Custom Policy

Default criteria apply. The change adjusts presentation only; it neither changes product defaults nor adds or broadens static-analysis suppression directives, so neither mandatory human-review condition applies.

Code

Adds mt-1.5 above the PR metadata row in ThreadDetailsPrRow, separating the title from metadata and action controls. Rendering conditions, action handlers, data, and external interactions are unchanged.

Review Context

Author Yash-Singh1 has write access and ping-devs membership; no ownership requirements were supplied. No unresolved review comments or correctness findings were supplied, nor any blocking severity or check results. The PR description reports before-and-after dark-mode screenshots.

Verdict

The supplied diff and surrounding component establish a localized spacing adjustment with no behavioral or persistent effects. No obvious material risk requires human judgment.

Notes:
No code owners found in target merge base 37d7615

Agent Credits: 30 credits
Approvability runs at a flat rate of 30 credits whenever the agent is asked for a verdict.