fix: Modify map fit bounds and set heading (#763)

Reduced padding and set heading for a better visual appearance.

Author: willum070

samples/routes-get-alternatives/index.ts

@@ -69,7 +69,8 @@ async function getDirections() {
   if (primaryRoute) {
     drawRoute(primaryRoute, true);
     await primaryRoute.createWaypointAdvancedMarkers({ map: innerMap });
-    innerMap.fitBounds(primaryRoute.viewport, 100);
+    innerMap.fitBounds(primaryRoute.viewport, 50);
+    innerMap.setHeading(70);
   }
   // [END maps_routes_get_alternatives_compute]
   // [END maps_routes_get_alternatives_request_full]