feat(gitee): issues, issue, pullRequests screens (#144)

* feat: gitee pulls, issue screens

* add action button - issue screen

* remove unnecessary comment

* feat: gitee create issue in repo

* feat: commenting in issue screen

* fix: prepend '#' to subtitle props

lib/widgets/user_name.dart

@@ -5,14 +5,15 @@ import 'package:provider/provider.dart';
 
 class UserName extends StatelessWidget {
   final String login;
+  final String prefix;
 
-  UserName(this.login);
+  UserName(this.login, this.prefix);
 
   @override
   Widget build(BuildContext context) {
     final theme = Provider.of<ThemeModel>(context);
     return Link(
-      url: '/github/$login',
+      url: '/$prefix/$login',
       child: Container(
         // padding: EdgeInsets.all(2),
         decoration: BoxDecoration(