chore: export enums properly rather than as types

[infiniteflower]

Explanation

This PR exports enums from bridge-controller as values rather than just as types.

References

Changelog

@metamask/bridge-controller

• CHANGED: AssetType, SortOrder, BridgeFlag, ActionTypes, ChainId, BridgeFeatureFlagsKey, RequestStatus, BridgeUserAction, BridgeBackgroundAction, FeeType enums now exported properly rather than just as types.

Checklist

• 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
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes