Clarify deprecated API endpoints

[slinkous]

Description

• Removes table entries that link to endpoints that do not exist.
• Removes table entry that points to an API endpoint that is not equivalent
• Adds link to CLI alternative for missing functionality
• Renames table headers for specificity.

Related issues or tickets

#22546

Reviews

• Technical review
• Editorial review
• Product review

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[slinkous]

@sarahsanders-docker PR'ed for WTD Writing Day! Held back on adding more context for the "why" of the change to stay consistent with the tone of this blog post: https://www.docker.com/blog/docker-hub-v1-api-deprecation/

Other source for pain points:

• https://www.reddit.com/r/docker/comments/8nw55t/hubdockercom_v2_registry_api/