使用worker进行加解密，防止主线程卡死

src/worker/aes_ctr.js

@@ -0,0 +1,9 @@
+import aesjs from 'aes-js'
+
+self.onmessage = async function (event) {
+    const data = event.data.data
+    const key = event.data.key
+    var aesCtr = new aesjs.ModeOfOperation.ctr(key, new aesjs.Counter(0))
+    const encryptData = aesCtr.encrypt(data)
+    self.postMessage(encryptData)
+}