更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/workbox-streams/isSupported.d.ts

@@ -0,0 +1,14 @@
+import './_version.js';
+/**
+ * This is a utility method that determines whether the current browser supports
+ * the features required to create streamed responses. Currently, it checks if
+ * [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/ReadableStream)
+ * can be created.
+ *
+ * @return {boolean} `true`, if the current browser meets the requirements for
+ * streaming responses, and `false` otherwise.
+ *
+ * @memberof workbox-streams
+ */
+declare function isSupported(): boolean;
+export { isSupported };