* [APM] APM & Observability plugin lint improvements
This is a large change, but most of it is automatic `eslint --fix` changes.
* Apply the same ESLint ovderrides in APM and Observability plugins.
* Remove the `no-unused-vars` rule. We can turn on the TypeScript check if needed.
* Check both JS and TS files.
* Add a rule for react function component definitions
* Upgrade eslint-plugin-react to include that rule
* Fully migrates metrics and logs to the NP
Co-authored-by: Jason Rhodes <jason.matthew.rhodes@gmail.com>
Co-authored-by: John Schulz <github.com@jfsiii.org>
Co-authored-by: Felix Stürmer <weltenwort@users.noreply.github.com>
