Migrate from deprecated "urlParamsToObject" to "queryToObject" in ee/analytics/code_review_analytics/filtered_search_code_review_analytics.js

Part of &6238 (closed)

Description

urlParamsToObject is deprecated, we should replace it with the equivalent queryToObject function in file:

ee/analytics/code_review_analytics/filtered_search_code_review_analytics.js

See !64386 (merged)