style(main): 清理代码中的多余空行

- 删除 main.ts 中 createApp 调用前的多余空行
- 删除 AddNodeModal 中 import 语句之间的多余空行

src/main.ts

@@ -10,7 +10,6 @@ import { setupNaiveDefaults } from '@/plugins/naive-ui-defaults'
 // 设置 Naive UI 组件默认属性
 setupNaiveDefaults()
 
-
 const app = createApp(App)
 
 app.use(pinia)

src/views/editor/components/NodeTree/components/AddNodeModal/functionals/index.ts

 import type { FormInst } from 'naive-ui'
 
-
 import { useEditorStore } from '@/store/editor'
 import { useAppStore } from '@/store/app'
 import type { XmlNode, DtdAttribute } from '@/types/xmlNode'