If the consuming crate has a different version, then you will
get compilation errors when mismatching the different tonic versions.
Export tonic from grpc_clients to avoid this issues.
Also explicitly state that the build.rs should be re-ran if a proto
changes.
In support of https://linear.app/comm/issue/ENG-3977
Depends on D8891
I actually think this is a bit too small. But that's what's in the design.
https://www.figma.com/file/L675ETKDnGaSwlpZAw4MIC/Mobile-App?node-id=351%3A455
@ashoat - I think 16px looks better.