[placeholder]: Add GA4 tracking for search

[sumiat]

Summary

Blocked by the transformation work

We need to set up GA4 to track the following metrics:

• Click-through-rate to the opportunity listing on grants.gov to measure the search accuracy for those top searched terms: this is to measure the metric: Click-through-rate to the opportunity listing on grants.gov to measure the search accuracy for those top searched terms; Aaron suggested possibly putting a # for each result? Might need to be a spike first
• Number of searches made per search term and the click conversion rate to the opportunity listing: might be the same configuration as the first one: https://support.google.com/analytics/answer/1032321?hl=en#zippy=%2Cin-this-article
• Number of searches made per filter combination and the click-through-rate to the opportunity listing
• Click-through-rate from search results to the opportunity listing: i believe this should come standard - user searches > clicks on the search result to the opportunity listing

Acceptance criteria

The following are captured and tracked in GA4

• Click-through-rate to the opportunity listing on grants.gov to measure the search accuracy for those top searched terms
• Number of searches made per search term and the click conversion rate to the opportunity listing
• Number of searches made per filter combination and the click-through-rate to the opportunity listing
• Click-through-rate from search results to the opportunity listing

[sumiat]

@btabaska will break this ticket up into smaller LOE

[btabaska]

Closed, placeholder has been swapped with tickets: #1892, #1891, #1890, #1889.