style: adjust dark hover background for user page to subtle

[KartikLabhshetwar]

What does this PR do?

• Fixes Hover state on event type links uses incorrect background color token (bg-emphasis instead of bg-subtle) #25661
• Fixes CAL-6876

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Mandatory Tasks (DO NOT REMOVE)

• I have self-reviewed the code (A decent size PR without self-review might be rejected).
• I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. If N/A, write N/A here and check the checkbox.
• I confirm automated tests are in place that prove my fix is effective or that my feature works.

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Summary by cubic

Updated the dark-mode hover background on event type links in the user page to use the subtle token for a softer, consistent look. Addresses CAL-6876 and fixes #25661 by replacing dark:hover:bg-emphasis with dark:hover:bg-subtle.

^{Written for commit 1a47429. Summary will update automatically on new commits.}

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[cubic-dev-ai]

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[dhairyashiil]

LGTM 👍🏼 , Thank you for your contribution.