Fix formatting in UK domains transfer instructions

[joyalgeorgekj]

Summary

Closes #30904

New line added to resolve the issue and gave tab for new line content for better alignment with bullet points in file src/content/docs/registrar/top-level-domains/uk-domains.mdx

Documentation checklist

• The change adheres to the documentation style guide.

[cloudflare-docs-bot]

Review

⚠️ 1 warning found in commit 8490bcf.

Warnings (1)

File	Issue
registrar/top-level-domains/uk-domains.mdx line 27	Directional words — Line adds (see below for restrictions) Fix: Replace below with a direct reference by name or link.

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