chore: tidy import

examples/blockly-vue3/src/components/BlocklyComponent.vue

@@ -12,8 +12,8 @@
 
 import {onMounted, ref, shallowRef} from 'vue';
 import * as Blockly from 'blockly/core';
-import * as libraryBlocks from 'blockly/blocks';
 import * as En from 'blockly/msg/en';
+import 'blockly/blocks';
 
 const props = defineProps(['options']);
 const blocklyToolbox = ref();