feat: support Insights opt-in from the Dashboard

[sarahdayan]

Summary

This enables Insights opt-in from the Dashboard.

Algolia customers can now opt-in to Automatic Insights directly from the Dashboard instead of having to pass the insights option to true in the code.

FX-2644

[codesandbox-ci]

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Sandbox	Source
@algolia/autocomplete-example-github-repositories-custom-plugin	Configuration
@algolia/autocomplete-example-instantsearch	Configuration
@algolia/autocomplete-example-playground	Configuration
@algolia/autocomplete-example-preview-panel-in-modal	Configuration
@algolia/autocomplete-example-react-renderer	Configuration
@algolia/autocomplete-example-starter-algolia	Configuration
@algolia/autocomplete-example-starter	Configuration
@algolia/autocomplete-example-reshape	Configuration
@algolia/autocomplete-example-vue	Configuration

[dhayab]

This looks great! I have listed some questions and suggestions before approving.

[sarahdayan]

Thanks for the review @dhayab! I took your feedback into account and also made a small change to never send clickAnalytics=false but rather not send it when the plugin is initialized not to pass it. This will avoid disabling Dashboard opt-in by forcing clickAnalytics to false in the request (e0a2c3b).

[jonathaningram]

👏🏻 🙏🏻