Set output as background (#3079)

Co-authored-by: github-actions <github-actions@github.com>

src/locales/zh/main.json

@@ -267,6 +267,7 @@
     "copy": "复制",
     "copyToClipboard": "复制到剪贴板",
     "currentUser": "当前用户",
+    "customBackground": "自定义背景",
     "customize": "自定义",
     "customizeFolder": "自定义文件夹",
     "delete": "删除",
@@ -342,6 +343,7 @@
     "searchNodes": "搜索节点",
     "searchSettings": "搜索设置",
     "searchWorkflows": "搜索工作流",
+    "setAsBackground": "设为背景",
     "settings": "设置",
     "showReport": "显示报告",
     "sort": "排序",