fix(#I135E7): 关闭 Mobile 认证后用户密码登录方式失效

#Comment
comment #I135E7

#Issue
close https://gitee.com/LongbowEnterprise/dashboard/issues?id=I135E7

src/admin/Bootstrap.Admin/wwwroot/js/login.js

@@ -134,6 +134,8 @@
         $login.find('[name="userName"], [name="password"]').attr('data-valid', 'false');
     }
 
+    var $loginType = $('#loginType');
+    if ($loginType.length === 1) {
         $login.on('submit', function (e) {
             var model = $loginType.attr('data-value');
             if (model === 'username') {
@@ -151,7 +153,7 @@
         });
 
         // login type
-    var $loginType = $('#loginType').on('click', function (e) {
+        $loginType.on('click', function (e) {
             e.preventDefault();
             var $this = $(this);
             $login.find('[data-toggle="tooltip"]').tooltip('hide');
@@ -174,6 +176,7 @@
                 $this.attr('data-value', 'username').text('短信验证登陆');
             }
         });
+    }
 
     var timeHanlder = null;
     $('#btnSendCode').on('click', function () {