Remove unresponsive content providers, update with new ones, and sort

[acejam]

Describe your changes

• Stale and unresponsive peer IDs and multiaddresses have been removed from the list. These results were verified using DHT lookups and vole libp2p identify inspection.
• The Filebase multiaddress was added
• The list was alphabetically sorted

Files changed

• docs/how-to/peering-with-content-providers.md

What issue(s) does this address?

IPFS Desktop and kubo users often attempt to peer with addresses on this list. This PR removes stale entries and ensures the currently listed entries are live.

Does this update depend on any other PRs?

It does not.

Checklist before requesting a review

• Passing the beta version of the Check Markdown links for modified files check. Action results can be viewed here.

Checklist before merging

• Passing all required checks (The beta Check Markdown links for modified files check is not required)

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[2color]

Thanks for cleaning this up. Looks mostly good.

I left one comment on one of the removed nodes.

[acejam]

@2color Updates made based on feedback, this should be good for merge now.