fix: bulletin notification flickering

[esaugomez31]

Summary

When a push notification arrives while the app is in the foreground, the bulletin card now appears immediately without needing to restart the app.

Problem

The onMessage handler in push-notification.tsx only logged the incoming FCM message but did not refetch the bulletins query. This caused the bulletin card to not appear until the app was restarted. Closes #3723.

Changes

• Added client.refetchQueries({ include: [BulletinsDocument] }) to the onMessage foreground handler
• Added client to the useEffect dependency array
• Added tests for the push notification component

[esaugomez31]

• fix: bulletin notification flickering  #3737 👈 (View in Graphite)
• main

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