[HUDI-1985] Added algolia search to the site + fixed broken links on the blog

[vingov]

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• Please review https://hudi.apache.org/contributing.html before opening a pull request.

What is the purpose of the pull request

Added Algolia search bar to the site.

Brief change log

• Added Algolia search bar to the site.
• Fixed the broken links on the latest blog page.

Verify this pull request

This change added tests and can be verified as follows:

Run these commands to test the site locally at http://localhost:3000/:

Note: ensure you have npm installed

./website/scripts/build-site.sh
cd website
npm run serve

Manually verified the website re-design changes by running the site locally.

Note: The search bar was rendered correctly but it wasn't loading any results since the domain is not hudi.apache.org, once we push to prod, the search will show up results.

Committer checklist

• Has a corresponding JIRA in PR title & commit

• Commit message is descriptive of the change

• CI is green

• Necessary doc changes done or have another open PR

• For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.

[vingov]

Search bar in my local:

[vinothchandar]

Woot!