Prefer use of Action or UnknownAction instead of AnyAction

[EskiMojo14]

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name: 🐛 Bug fix or new feature
about: Fixing a problem with Redux

PR Type

Does this PR add a new feature, or fix a bug?

Experiments with using Action and UnknownAction to avoid usage of AnyAction.

Why should this PR be included?

AnyAction introduces unwanted and unsafe any values into codebases.
UnknownAction allows accessing (and passing) arbitrary top level keys, but forces the reducer to check the value before use.
Action only allows access to the type property, until type guarded to allow extra properties. (safest, but most inconvenient)

Checklist

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Is there an existing issue for this PR?
  • Middleware action is typed as any #4518
• Have the files been linted and formatted?
• Have the docs been updated to match the changes in the PR?
• Have the tests been updated to match the changes in the PR?
• Have you run the tests locally to confirm they pass?

also includes changes from #4519 and #4491 to build upon

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