## Explanation

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This PR adds additional types to facilitate Bridge development in
Extension.

## References

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Related to: MetaMask/metamask-extension#27262

## Changelog

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### `@metamask/transaction-controller`

- ADDED: `bridgeApproval`, `bridge` types

## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've highlighted breaking changes using the "BREAKING" category
above as appropriate

---------

Co-authored-by: Matthew Walsh <matthew.walsh@consensys.net>