add clear storage

html/manage.html

@@ -16,6 +16,8 @@
         <input type="checkbox" name="savetolocalstorage" id="save2Local">
         <label for="save2Local">save to localstorage</label>
         <button id="addKey">Add</button>
+        <button id="clearlocalstorage">clear local storage</button>
+
     </div>
     <template id="app-list">
         <div class="accountContainer">

html/manage.js

@@ -4,6 +4,10 @@ import { testStr, restartAPP } from './manage-utils.js'
 const main = document.querySelector("#main");
 const template = document.querySelector('#app-list');
 const save2Local = document.querySelector("#save2Local")
+const clearlocalstorage = document.querySelector("#clearlocalstorage");
+clearlocalstorage.addEventListener('click', ()=>{
+    localStorage.clear();
+})
 // const accounts = [];
 const accountsStr = localStorage.getItem("accounts");
 const accounts = new Set(JSON.parse(accountsStr) || []);