实现打印存根

ruoyi-ui/package.json

@@ -51,6 +51,7 @@
     "file-saver": "2.0.5",
     "fuse.js": "6.4.3",
     "highlight.js": "9.18.5",
+    "html-to-image": "^1.11.11",
     "js-beautify": "1.13.0",
     "js-cookie": "3.0.1",
     "jsencrypt": "3.0.0-rc.1",