refactor(types)!: Remove elements prop, change EdgeTypes/NodeTypes prop to string[]

* no more elements prop - v-model instead!
* Instead of passing an object map to components just pass in an array of strings as nodeTypes/edgeTypes object
* the string name will either be resolved to a dynamic component with :is="type" or a slot with the type-name
* update all examples

Signed-off-by: Braks <78412429+bcakmakoglu@users.noreply.github.com>

examples/UpdatableEdge/UpdatableEdgeExample.vue

@@ -51,7 +51,7 @@ const onElementsRemove = (elementsToRemove: Elements) => (elements.value = remov
 </script>
 <template>
   <VueFlow
-    :elements="elements"
+    v-model="elements"
     :snap-to-grid="true"
     :connection-mode="ConnectionMode.Loose"
     @load="onLoad"