feat(Icon): switch to nuxt-icon with dynamic prop or app config (#862)

src/runtime/components/elements/Icon.vue

@@ -1,15 +1,22 @@
 <template>
-  <span :class="name" />
+  <Icon v-if="dynamic" :name="name" />
+  <span v-else :class="name" />
 </template>
 
 <script lang="ts">
 import { defineComponent } from 'vue'
+// @ts-expect-error
+import appConfig from '#build/app.config'
 
 export default defineComponent({
   props: {
     name: {
       type: String,
       required: true
+    },
+    dynamic: {
+      type: Boolean,
+      default: () => !!appConfig.ui?.icons?.dynamic
     }
   }
 })