[OE] plugins should not include devDependencies in their dependencies and only have dependencies they need

[kavilla]

Is your feature request related to a problem? Please describe.

dependences with package.json is what the plugin will be compiled down with to use for release builds. Even if those dependencies are utilized in dev only. This will increase the distribution size, risk security issues, and increase the build time.

Example:
https://github.com/opensearch-project/dashboards-assistant/blob/3991de2f7a732ddd87c29ae30ad03e8ee768cd10/package.json#L24

^ note: This could be on purpose, I'm not sure how it is using JSDOM.

Describe the solution you'd like

Audit https://github.com/opensearch-project plugins for OpenSearch Dashboards and verify their dependencies does not include any obvious devDependencies. Like anything with tests would be easy to spot.

In this process, we should verify that dependencies from the plugins are required. If it is not use, then likely just needs to be cleaned up.

If so, create an issue in their repo (potentially make the change). Track it apart of this issue. Maybe, just create an issue for every OpenSearch Dashboards to have them verify their dependencies are valid.

Describe alternatives you've considered

n/a

Additional context

n/a