new: pull to refresh on server tab

lib/generated/intl/messages_en.dart

@@ -68,6 +68,7 @@ class MessageLookup extends MessageLookupByLibrary {
 
   final messages = _notInlinedMessages(_notInlinedMessages);
   static Map<String, Function> _notInlinedMessages(_) => <String, Function>{
+        "about": MessageLookupByLibrary.simpleMessage("About"),
         "aboutThanks": MessageLookupByLibrary.simpleMessage(
             "\n\nThanks to the following people who participated in the test."),
         "addAServer": MessageLookupByLibrary.simpleMessage("add a server"),

lib/generated/intl/messages_zh.dart

@@ -66,6 +66,7 @@ class MessageLookup extends MessageLookupByLibrary {
 
   final messages = _notInlinedMessages(_notInlinedMessages);
   static Map<String, Function> _notInlinedMessages(_) => <String, Function>{
+        "about": MessageLookupByLibrary.simpleMessage("关于"),
         "aboutThanks":
             MessageLookupByLibrary.simpleMessage("\n\n感谢以下参与软件测试的各位。"),
         "addAServer": MessageLookupByLibrary.simpleMessage("添加服务器"),

lib/generated/l10n.dart

@@ -50,6 +50,16 @@ class S {
     return Localizations.of<S>(context, S);
   }
 
+  /// `About`
+  String get about {
+    return Intl.message(
+      'About',
+      name: 'about',
+      desc: '',
+      args: [],
+    );
+  }
+
   /// `\n\nThanks to the following people who participated in the test.`
   String get aboutThanks {
     return Intl.message(