## Summary

Part of elastic#187772.

We had a mix of passing around `embeddingOrigin` via props and context.
This PR cleans this up, `embeddingOrigin` is now be required to be
passed in on the outer most component and will then be used internally
via context only.

The PR also renames references to `AppDependencies` to
`AiopsAppContextValue`. Originally, this context was used only to pass
in dependencies to be used via `useKibana`. Over time this changed a bit
and we started passing in other non-changing values, the naming change
now reflects that more properly and brings the name in line with the
other context related vars like `AiopsAppContext.Provider` and
`useAiopsAppContext`.

### Checklist

- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [x] This was checked for breaking API changes and was [labeled
appropriately](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)

(cherry picked from commit ae36dd5)