fix: 🐛 use better mock data (#4791)

## Explanation

This PR modifies some mock data returned by the
NotificationServicesController to provide more realistic data for use in
tests and component rendering in Storybook.

## References

N/A

## Changelog

### `@metamask/notification-services-controller`

- **CHANGED**: some functions in `mock-raw-notifications` now return
more realistic mock data


## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [x] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [x] I've highlighted breaking changes using the "BREAKING" category
above as appropriate
- [x] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

packages/notification-services-controller/src/NotificationServicesController/__fixtures__/mock-raw-notifications.ts

@@ -704,7 +704,7 @@ export function createMockNotificationEnsExpiration(): OnChainRawNotification {
     data: {
       kind: 'ens_expiration',
       chainId: 1,
-      reverseEnsName: 'example.eth',
+      reverseEnsName: 'vitalik.eth',
       expirationDateIso: '2024-01-01T00:00:00Z',
       reminderDelayInSeconds: 86400,
     },
@@ -733,11 +733,11 @@ export function createMockNotificationLidoStakingRewards(): OnChainRawNotificati
     data: {
       kind: 'lido_staking_rewards',
       chainId: 1,
-      currentStethBalance: '100',
-      currentEthValue: '10000.00',
-      estimatedTotalRewardInPeriod: '10000.00',
-      daysSinceLastNotification: 1,
-      notificationIntervalDays: 1,
+      currentStethBalance: '10',
+      currentEthValue: '10.5',
+      estimatedTotalRewardInPeriod: '0.5',
+      daysSinceLastNotification: 30,
+      notificationIntervalDays: 30,
     },
     id: 'd73df14d-ce73-4f38-bad3-ab028154042l',
     trigger_id: 'd73df14d-ce73-4f38-bad3-ab028154042l',
@@ -766,7 +766,7 @@ export function createMockNotificationNotionalLoanExpiration(): OnChainRawNotifi
       chainId: 1,
       loans: [
         {
-          amount: '100',
+          amount: '1.1234',
           symbol: 'ETH',
           maturityDateIso: '2024-01-01T00:00:00Z',
         },
@@ -798,11 +798,11 @@ export function createMockNotificationRocketpoolStakingRewards(): OnChainRawNoti
     data: {
       kind: 'rocketpool_staking_rewards',
       chainId: 1,
-      currentRethBalance: '100',
-      currentEthValue: '10000.00',
-      estimatedTotalRewardInPeriod: '10000.00',
-      daysSinceLastNotification: 1,
-      notificationIntervalDays: 1,
+      currentRethBalance: '10',
+      currentEthValue: '10.5',
+      estimatedTotalRewardInPeriod: '0.5',
+      daysSinceLastNotification: 30,
+      notificationIntervalDays: 30,
     },
     id: 'd73df14d-ce73-4f38-bad3-ab028154042r',
     trigger_id: 'd73df14d-ce73-4f38-bad3-ab028154042r',