feat:新增pure-admin前端

Yi.Pure.Vue3/src/utils/globalPolyfills.ts

@@ -0,0 +1,7 @@
+// 如果项目出现 `global is not defined` 报错，可能是您引入某个库的问题，比如 aws-sdk-js https://github.com/aws/aws-sdk-js
+// 解决办法就是将该文件引入 src/main.ts 即可 import "@/utils/globalPolyfills";
+if (typeof (window as any).global === "undefined") {
+  (window as any).global = window;
+}
+
+export {};