[lib] Use specs to determine hash value for top-level infos

Summary:
Create convertedInfos where hashKeys are used as keys and access this object to determine for which entries we should compute a hash.

https://linear.app/comm/issue/ENG-4813/migrate-getclientresponsesselector-to-a-spec

Depends on D9030

Test Plan: Modify server state and check if state check fixes client state.

Reviewers: kamil, bartek, inka

Reviewed By: bartek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D9031