Enhance/landmark address cards

[amoduenechojo]

#closes
#149

Summary

This PR enhances delivery workflow cards by displaying an optional "Landmark" reference alongside the standard origin/destination address. Landmarks are shown as a distinct badge with italic text to improve driver navigation in complex street layouts.

Changes

• Added optional landmark field to the Delivery type
• Rendered landmark information conditionally in delivery cards
• Applied responsive styling to prevent overflow and preserve mobile layout

Validation

• corepack pnpm jest components/__tests__/DeliveryList.test.tsx --runInBand
• 9 tests passed

Notes

• The card gracefully handles null/missing landmark values
• No inline mock data was introduced; behavior is consistent with existing delivery data flow