Code Insights: [FE] Implement check list logic for capture groups search query field

Created by: vovakulikov

Blocked by https://github.com/sourcegraph/sourcegraph/issues/21339

Context

For capture groups query we have a list of requirements. Based on the latest design spec they are following.

Tech details: This list of rules could be implemented with our custom pattern matching for queries https://sourcegraph.com/github.com/sourcegraph/sourcegraph@d3f3d5e2a394a933337301fb16eb83e6f59a6b27/-/blob/client/shared/src/search/query/diagnostics.ts?L84-178