feat: 新增app版本发布说明

lib/login/login/app_get_version.dart

@@ -29,7 +29,7 @@ class Data {
   Data.fromJson(Map<String, dynamic> json) {
     wechatServiceUrl = json['wechat_service_url'];
     appSiteUrl = json['app_site_url'];
-    appVersionHistoryUrl = json['app_version_history_url'];
+    appVersionHistoryUrl = json['appVersionHistoryUrl'];
   }
 
   String? wechatServiceUrl;

lib/mine/about/about_page.dart

@@ -117,6 +117,12 @@ class _AboutPageState extends State<AboutPage> {
                     });
               });
             }),
+        Divider(
+          height: 1,
+          color: AppColors.greyLineColor,
+          indent: 20.w,
+          endIndent: 20.w,
+        ),
         CommonItem(
             leftTitel: '介绍'.tr,
             rightTitle: '',