chore: update

Author: Simon he

src/download.ts

@@ -1,8 +1,7 @@
 import { uuid } from "./uuid"
 export function download(url: string) {
-  let a: any = document.createElement('a')
+  const a: HTMLAnchorElement = document.createElement('a')
   a.href = url
   a.download = url.substring(url.lastIndexOf('/') + 1, url.length)
   a.click()
-  a = null
 }