Don't allow granting guests write access in a call where the channel
or one of its ancestors requires the zed CLA, until that guest has
signed the Zed CLA.
Co-authored-by: Marshall <marshall@zed.dev>
This PR updates the tenses used by the summary line of doc comments to
match the [Rust API documentation
conventions](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#summary-sentence).
Specifically:
> The summary line should be written in third person singular present
indicative form. Basically, this means write ‘Returns’ instead of
‘Return’.
I'm sure there are plenty occurrences that I missed.
Release Notes:
- N/A
Instead, admins are specified using a JSON file, 'admins.json'. This file is
gitignored. If it is not present, there is a default list of admins in
'admins.default.json'.
