Protocol action "of" validation

[flothjl]

Fixes #507
Moving protocol action rule "of" validation to javascript to improve error messaging.

Debated trying to leverage an ajv plugin to help improve error messaging during schema validation, but a couple of things stood out:

1. Would require changing configurations for Ajv instance to return all errors in a validation instead of stopping after the first error.
2. A lot of the groundwork for this type of validation on $actions was added recently with Authorize RecordsRead with globalRole #512

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[EbonyLouis]

@flothjl Just a heads-up: To be eligible for the official Hacktoberfest prizes, PRs need to be merged on or after October 1st. Would you like to wait until then or merge it now?

to be eligible for Hacktoberfest's official prizes make sure you're registered, registration is now open. Reach out if you need any help 🥳

[diehuxx]

Thanks @flothjl -- @thehenrytsai and I made a small change and merged main. Like @EbonyLouis said, if you want to be part of the Hacktoberfest thing, we'll wait to merge this until Sunday Oct 1st. Or feel free to merge it sooner, it's up to you.

[flothjl]

@diehuxx @EbonyLouis I'm really okay either way here. It doesn't look like I have rights to merge. If waiting until 10/1 helps TBD's Hacktoberfest 🍁 standings I can just reopen the PR on Sunday, otherwise I'm fine if y'all just merge now :).