feat: 添加逻辑流相关依赖并更新界面文本

- 在package.json和package-lock.json中添加`@logicflow/core`和`@logicflow/extension`依赖
- 更新`index.vue`中的界面文本，将“作品目录”修改为“工作空间”，并将“配图数量”修改为“每条配图数量”以提升用户体验

package.json

@@ -17,6 +17,8 @@
     "@codemirror/lang-javascript": "^6.1.1",
     "@codemirror/theme-one-dark": "^6.1.0",
     "@element-plus/icons-vue": "^2.3.1",
+    "@logicflow/core": "^2.2.1",
+    "@logicflow/extension": "^2.2.1",
     "@wangeditor/editor": "^5.1.23",
     "axios": "1.8.2",
     "codemirror": "^6.0.1",