main代码合并到electron-main (#1834)

* upgrade electron version:11->18.

upgrade electron version:11->18.
Packaging failed because the original electronic version was too old.
将electron 11 改成18.因为11太老导致打包错误。

* main->electron-main合并代码

* main->electron-main合并代码

* main->electron-main合并代码

README.zh-CN.md

@@ -70,20 +70,20 @@ git clone https://github.com/anncwb/vue-vben-admin.git
 ```bash
 cd vue-vben-admin
 
-yarn install
+pnpm install
 
 ```
 
 - 运行
 
 ```bash
-yarn serve
+pnpm serve
 ```
 
 - 打包
 
 ```bash
-yarn build
+pnpm build
 ```
 
 ## 更新日志