fix(website): add Algolia search API key

[shortcuts]

Summary

This PR update the docusaurus config to expose the Algolia search API key.

note: Algolia search API keys can be disclosed publicly

Motivation

Search does not work on the production website.

Test plan

• cd website
• yarn start
• Search

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[shortcuts]

Since then, we've migrated to our new infra: https://docsearch.algolia.com/docs/migrating-from-legacy

Update credentials in 2b9306a to reflect that.

cc @rh389

[robhogan]

Thanks @shortcuts and sorry this has taken so long for us to get around to!

I'm not personally familiar with our Algolia account - where do these values come from?

[facebook-github-bot]

@rh389 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[shortcuts]

Thanks @shortcuts and sorry this has taken so long for us to get around to!

I'm not personally familiar with our Algolia account - where do these values come from?

No problem! Team members of the account have receive an email with those keys, you can also find them here https://www.algolia.com/account/api-keys/all?applicationId=T38HJZTD87

edit: I only see @cpojer as team members of this app. Should I add you?

[robhogan]

I only see @cpojer as team members of this app. Should I add you?

Ah, yes, please - me and @motiz88. I'll email you.