Search: fix some interface strings are not being localized

[kangzj]

Fixes #20520

Changes proposed in this Pull Request:

Inline translations before enqueuing the main payload to make sure translations for lazy-loaded payloads are available.

TODO: test on WPCOM

Jetpack product discussion

n/a

Does this pull request change what data or activity we track or use?

no

Testing instructions:

• Open your local site with Jetpack Search subscription
• Caculate signature php -r "echo md5('_inc/build/instant-search/jp-search.chunk-main-payload-a7fe2cd7399a1c7473a1.js');"
  • You need to replace the file name with your local one
  • Please NOTE: no min should be in the file name even that is the case
• Change the translation file name, e.g. from jetpack-fr_FR-MD5.json to jetpack-fr_FR-83c2622273c4d246d24c018dd16b3510.json, 83c2622273c4d246d24c018dd16b3510 is the md5 you get from the previous step.
• Ensure everything is translated, especially the marked ones.

[matticbot]

Caution: This PR has changes that must be merged to WordPress.com
Hello kangzj! These changes need to be synced to WordPress.com - If you 're an a11n, please commandeer and confirm D66019-code works as expected before merging this PR. Once this PR is merged, please commit the changes to WP.com. Thank you!
This revision will be updated with each commit to this PR

[github-actions]

Thank you for your PR!

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Jetpack plugin:

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[kangzj]

This is closed in favour of #20926