Map updates in customer view and Work view

We've made two small map improvements that should make day-to-day planning a bit easier.

On the customer page: you can now tap the map in the header to expand it into an interactive map. That means you can pan around, get your bearings, and see the wider area without leaving the page.

In Work view: you can now choose to show live traffic on the map. Handy if the roads are having one of their usual little meltdowns and you want a clearer picture before setting off.