Tracking issue: Styling

[Ethan-000]

Problem

There is a rust styling guide here https://github.com/rust-lang/rust-analyzer/blob/master/docs/dev/style.md.

If there's inconsistency of styling between the Noir repo and this guide changes can be made to match it.

Solution

change styling

Alternatives considered

alternatively it can be kept it as it is

Additional context