feat: Introduce Reverification

[panteliselef]

Important

🔎 Previews:

• https://clerk.com/docs/pr/1726/guides/reverification
• https://clerk.com/docs/pr/1726/references/nextjs/auth-object
• https://clerk.com/docs/pr/1726/references/react/use-reverification
• https://clerk.com/docs/pr/1726/references/javascript/session-verification

Explanation:

• Create a new guide for Re-verification
• Update reference of Auth Object
• Create a useReverification reference page

This PR:

Checklist

• I have clicked on "Files changed" and performed a thorough self-review
• I have added the "deploy-preview" label and added the preview link(s) to this PR description
• All existing checks pass

[github-actions]

Hey, here’s your docs preview: https://clerk.com/docs/pr/1726

[panteliselef]

Tbh I don't know if placed the re-verification guide in the correct path, so feel free to suggest a better spot.

[colinclerk]

Please switch "re-verification" to "reverification" (no hyphen) to be consistent with the SDK

[colinclerk]

I've made suggestions in one file, but please change "re-verify" to "reverify" everywhere.

Also, can we please add information about the available reverification levels directly within the guide, instead of forcing out to the docs. Thanks!

[panteliselef]

@clerk/docs how do i fix this ? formatting keeps breaking it.