use finder tracker from govuk publishing components

[patrickpatrickpatrick]

• test
• use finder frontend from publishing components

⚠️ This repo is Continuously Deployed: make sure you follow the guidance ⚠️

Follow these steps if you are doing a Rails upgrade.

Some search page examples to sense check:

• https://[HEROKU-APP-ID].herokuapp.com/search/all
• https://[HEROKU-APP-ID].herokuapp.com/search/news-and-communications?parent=%2Feducation&topic=c58fdadd-7743-46d6-9629-90bb3ccc4ef0
• https://[HEROKU-APP-ID].herokuapp.com/drug-device-alerts