Stop the default multiWorld constraint being applied on Custom Animation example

For zoom: 1 to be reached the default extent constraint must be removed by adding multiWorld: true

examples/feature-animation.js

@@ -21,7 +21,8 @@ const map = new Map({
   target: 'map',
   view: new View({
     center: [0, 0],
-    zoom: 1
+    zoom: 1,
+    multiWorld: true
   })
 });