fix!: props and composable not merging together properly

* Add getter for node/edge types
* change nodeTypes prop type to only Record<string, NodeType> - same for edges
* Add rgb example
* remove v-model for elements

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

examples/RGBFlow/RGBOutputNode.vue

@@ -0,0 +1,15 @@
+<script lang="ts" setup>
+import { Handle, NodeProps, Position } from '~/index'
+
+interface RBGOutputNodeProps extends NodeProps {
+  rgb: string
+}
+
+const props = defineProps<RBGOutputNodeProps>()
+</script>
+<template>
+  <div :style="{ backgroundColor: props.rgb }" class="p-3 rounded-xl text-left text-white">
+    <div class="text-md uppercase">{{ props.rgb }}</div>
+    <Handle type="source" :position="Position.Left" />
+  </div>
+</template>