Context: https://linear.app/comm/issue/ENG-6366/rename-minimallyencodedrawthreadinfo-to-rawthreadinfo
Rename the MinimallyEncodedRawThreadInfo type to RawThreadInfo.
NOTE: Consciously made the decision to keep the function names as is (eg minimallyEncodeRawThreadInfo or whatever. Hope that's fine.
Depends on D10627