更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/temp-dir/readme.md

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+# temp-dir [![Build Status](https://travis-ci.org/sindresorhus/temp-dir.svg?branch=master)](https://travis-ci.org/sindresorhus/temp-dir)
+
+> Get the real path of the system temp directory
+
+[The `os.tmpdir()` built-in doesn't return the real path.](https://github.com/nodejs/node/issues/11422) That can cause problems when the returned path is a symlink, which is the case on macOS. Use this module to get the resolved path.
+
+
+## Install
+
+```
+$ npm install temp-dir
+```
+
+
+## Usage
+
+```js
+const tempDirectory = require('temp-dir');
+
+console.log(tempDirectory);
+//=> '/private/var/folders/3x/jf5977fn79jbglr7rk0tq4d00000gn/T'
+
+console.log(require('os').tmpdir());
+//=> '/var/folders/3x/jf5977fn79jbglr7rk0tq4d00000gn/T' // <= Symlink
+```
+
+
+## License
+
+MIT © [Sindre Sorhus](https://sindresorhus.com)