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/EdgeTypes/EdgeTypesExample.vue

@@ -23,7 +23,7 @@ const onElementsRemove = (elementsToRemove: Elements) => (elements.value = remov
 const onConnect = (params: Connection | Edge) => (elements.value = addEdge(params, elements.value))
 </script>
 <template>
-  <VueFlow :elements="elements" :min-zoom="0.2" @load="onLoad" @elements-remove="onElementsRemove" @connect="onConnect">
+  <VueFlow v-model="elements" :min-zoom="0.2" @load="onLoad" @elements-remove="onElementsRemove" @connect="onConnect">
     <MiniMap />
     <Controls />
   </VueFlow>