feature: refresh list & save to gallery

Pixiview/Resources/Languages/zh-CN.xml

@@ -1,4 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <root>
+    <Title>Pixiview</Title>
+    <Ok>OK</Ok>
     <Follow>已关注</Follow>
+    <Preview>预览</Preview>
+    <SaveSuccess>成功保存图片到照片库。</SaveSuccess>
 </root>

Pixiview/Resources/ResourceHelper.cs

@@ -10,6 +10,10 @@ namespace Pixiview.Resources
 {
     public class ResourceHelper
     {
+        public static string Title => GetResource(nameof(Title));
+        public static string Ok => GetResource(nameof(Ok));
+        public static string SaveSuccess => GetResource(nameof(SaveSuccess));
+
         static readonly Dictionary<string, LanguageResource> dict = new Dictionary<string, LanguageResource>();
 
         public static string GetResource(string name, params object[] args)