[mirotalksfu] - improve login UI

public/view/login.html

@@ -76,7 +76,7 @@
                     <div class="container">
                         <div class="hero-inner">
                             <div class="hero-copy">
-                                <fieldset>
+                                <div id="loginForm">
                                     <br />
                                     <div class="mb-12">
                                         <input
@@ -102,7 +102,7 @@
                                             Login
                                         </button>
                                     </div>
-                                </fieldset>
+                                </div>
                                 <script>
                                     let loginBtn = document.getElementById('loginButton');