添加小区名称，昵称为空时显示错误

lib/pages/personal/user_profile_page.dart

@@ -116,7 +116,7 @@ class _UserProfilePageState extends State<UserProfilePage> {
           ),
           _buildTile(
             '昵称',
-            userProvider.userInfoModel.nickName.text.make(),
+            (userProvider.userInfoModel?.nickName ?? '').text.make(),
             onPressed: () {
               ChangeNickName().to();
             },

lib/pages/sign/sign_up/sign_up_pick_plot_page.dart

@@ -24,7 +24,7 @@ class _SignUpPickPlotPageState extends State<SignUpPickPlotPage> {
       body: ListView(
         children: [
           ListTile(
-            title: 'PLACEHOLDER PLOT'.text.make(),
+            title: '五象新区人才公寓'.text.make(),
             onTap: SignUpPickBuildingPage().to,
           ).material(color: Colors.white),
         ],