Feat: add rustfmt

[NOOMA-42]

Description

add rustfmt

Drive-by changes

• add rustfmt
• modify precommit husky file
  • I add +nightly flag, because import-graduiarity in not yet stable.

Related issues

• Fixes Add a rustfmt file #2877

Backward compatibility

Yes

Testing

Manual Tests:

1. run
   cargo +nightly fmt --all --check --manifest-path rust/Cargo.toml
   in root folder
2. commit something to test husky

TODO: I only run fmt in check mode and haven't applied the change, should I apply?

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Latest commit: 030b5e5

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[daniel-savu]

Thanks for opening! We're not using nightly rust anywhere in the codebase so I'd rather wait until this feature becomes stabilized. There's no clear timeline for stabilizing it unfortunately, but happy to merge your PR once this is stabilized.