prefer new defineComponent for TS in SFC

Author: Ronnie Villarini

snippets/vue.json

@@ -200,9 +200,9 @@
       "</template>",
       "",
       "<script lang=\"ts\">",
-      "import Vue from 'vue'",
+      "import { defineComponent } from 'vue'",
       "",
-      "export default Vue.extend({",
+      "export default defineComponent({",
       "\tsetup () {",
       "\t\t${0}\n",
       "\t\treturn {}",