[Swift] Error enum case starts with uppercase letter

[szymon-nord]

Hey 👋
We noticed a discrepancy between regular enums and enums that conform to Error type in Swift.
The latter ones are generated with uppercase first letter which do not align with lowerCamelCase Swift conventions (source).

Enum template consists enum_variant_swift_quoted for particular case, but error template has class_name.

Is this something which can be addressed somehow?

[mhammond]

b/w compat will be the issue here, but we could probably have a flag in uniffi.toml to change this.