Enabling livereload or hotload feature in opensearch-dashboard project

[ghost]

Is your feature request related to a problem? Please describe.
No

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I’m working on ISM plugin and find it annoying to reload page while making some changes to FE code. Can we add a new option when start the webpack server to enable the livereload and hotload feature, which will help to improve the efficiency alot

Describe the solution you'd like
Use yarn start --hotload --live-reload to enable both features.

A clear and concise description of what you want to happen.
Dashboard and other plugins will leverage the dev-friendly feature.

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Additional context

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[ananzh]

I think we need to understand what we want to implement here: hotload or live-reload or both.
what are the benefits and what are the implement plans.
need some community help.

[ashwin-pc]

The difference is outlined well here: https://stackoverflow.com/a/41429055

This is also a duplicate of #679. Marking it as such and adding these details to the original issue

[SuZhou-Joe]

Thanks and I think it should be both enabled and let user choose which to use by cli options. Anyway I find a duplicate one and will try to raise a PR once I figure it out in dashboards repo.