feat: ✨ update notification types and tests

[matteoscurati]

Explanation

This PR introduces a better definition of the notification types described by the NotificationServiceController. The new types allow for the description of the new Web3Notification while maintaining compatibility with the current WalletNotification.​

References

Related to https://consensyssoftware.atlassian.net/browse/NOTIFY-1230?atlOrigin=eyJpIjoiMzYwOGEwNTFhN2IxNGRiMWEwZGU0N2IyNzI0MTExNzgiLCJwIjoiaiJ9

Changelog

@metamask/notification-services-controller

• CHANGED: Updated the types described in types/on-chain-notification/schema and types/on-chain-notification/on-chain-notification
• CHANGED: Updated the mock data according to the new types in mock-raw-notifications

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