fix: handle null item.data in openHomeScreenShortcut

[sentry]

This PR addresses a TypeError: Cannot read property 'originId' of null that occurred in the openHomeScreenShortcut function within src/hooks/use-deep-linking.ts.

The error was triggered when opening home screen shortcuts (e.g., static shortcuts) where the item.data property was null. The existing guard if (!item) return only checked for a null item itself, not for a null item.data.

To fix this, the following changes were made:

1. The guard on line 62 was extended to if (!item || !item.data) return, ensuring that the function exits early if item or item.data is null.
2. Optional chaining (item.data?.originId and item.data?.destinationId) was added on lines 63-64 for additional robustness when accessing properties of item.data.

Fixes BETTER-RAIL-3V