Remove author landing page and metadata (EPIC)

[nick-mon1]

Summary

Removes author metadata and redirects https://digital.gov/authors/ to https://digital.gov/news.

This PR covers:

• redirects /authors to /news
• removes some bio fields from the author template

Fields to Keep

• display_name
• first_name
• last_name
• slug
• agency
• photo (custom photo path)
• github (github name for image)

The below PR's will be merged into this PR covers the removal of author metadata.

PR	Description
8217	Removes authors A-B
8256	Removes authors B-C

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Solution

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How To Test

1. First Step
2. Second Step
3. Third Step

[github-actions]

🔍 Preview in Federalist

[bonnieAcameron]

There are some bits and pieces of metadata or helper text that I've flagged for removal. Although I have only flagged them in 1-2 places, they actually appear throughout the 2 sub-PRs. Some metadata still contains PII.

I also have a question about the consistency of the agency field, whether it is acronym only or spelled out (I suggest the latter, but I want to make sure that it is a proactive decision)