feat: add perps order notifications

[Prithpal-Sooriya]

Explanation

Adds perp order notification support.

This is technically already supported here, but moving to core will reduce logic/complexity of setting up notifs.
https://github.com/MetaMask/metamask-mobile/blob/3428d076e871e1ab7a68978bcc2da9770c4200b7/app/components/UI/Perps/controllers/PerpsController.ts#L697

References

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 communicated my changes to consumers by updating changelogs for packages I've changed, highlighting breaking changes as necessary
• I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes