完成修改密码界面并修复了大量bug

frontend/Web/register.html

@@ -174,7 +174,7 @@
             <a href="#" onclick="(async () => { await Request('logout'); await UpdateUserInfo(); })();">Logout</a>
             <a href="#" onclick="localStorage.removeItem('session_token'); localStorage.removeItem('outhentication_key'); localStorage.removeItem('operation_count'); window.close();">Close Session</a>
             <a href="/register">Register</a>
-            <a href="#">Change Password</a>
+            <a href="/passwd">Change Password</a>
             <a href="#">Admin Panel</a>
           </div>
         </div>
@@ -189,7 +189,7 @@
     </nav>
     <div class="content">
       <div class="register-box">
-        <form onsubmit="console.log('trying login'); TryRegister(); return false;">
+        <form onsubmit="console.log('trying register'); TryRegister(); return false;">
             <input id="user_name" type="text" placeholder="Username" required>
             <input id="password" type="password" placeholder="Password" required>
             <input id="nickname" type="text" placeholder="Nickname" required>
@@ -238,7 +238,9 @@
         ChangeUsername(nm+" [Admin]");
       }
     }
-    UpdateUserInfo();
+    document.addEventListener('SessionReady', async () => {
+      await UpdateUserInfo();
+    });
     async function TryRegister()
     {
       console.log("TryRegister called");