AO3-6622 Decrease margins on definition lists in FAQs

[forceofcalm]

Pull Request Checklist

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• Have you read the contributing guidelines?
• Have you added tests for any changed functionality?
• Have you added the Jira issue number
  as the first thing in your pull request title (e.g. AO3-1234 Fix thing)
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Issue

https://otwarchive.atlassian.net/browse/AO3-6622

Purpose

Adjusts the margins for .userstuff dl and dd elements within .faq containers to be smaller.

Testing Instructions

These margins can be seen on the /faq path (although there does not seem to be any FAQ data on my local...)

Credit

calm (they/them)

[sarken]

Thanks for this! Docs is really going to appreciate it. (Also, apologies for the premature single comment. I was distracted and hit the wrong button.)

If you want to add FAQ data to your dev environment, you can create an admin account with the superadmin, translation, or docs role to access the interface for creating FAQs.