修复button type绑定空值时闪退

uni_modules/uni-id-pages-x/components/uni-id-pages-x-loginByPwd/uni-id-pages-x-loginByPwd.uvue

@@ -5,7 +5,7 @@
     <uni-id-pages-x-input class="my-input" title="密码" v-model="password" :password="true" ref="password"></uni-id-pages-x-input>
     <!-- 同意隐私政策协议 -->
     <uni-id-pages-x-agreements class="agreements-box" ref="agreements" scope="login"/>
-    <button class="uni-btn" :type="password.length > 0 && username.length >0 ? 'primary' : '' " @click="loginByPwd">登录</button>
+    <button class="uni-btn" :type="password.length > 0 && username.length >0 ? 'primary' : 'default' " @click="loginByPwd">登录</button>
   </view>
 
   <view class="link-group">

uni_modules/uni-id-pages-x/pages/login/login.uvue

@@ -48,7 +48,7 @@
 		},
 		data() {
 			return {
-				loginType: "username" as string,
+				loginType: "username",
 				logo: "/static/logo.png"
 			}
 		},