字典设置是否显示字段

src/Hotline/Settings/SystemDicData.cs

@@ -36,7 +36,7 @@ namespace Hotline.Settings
         /// <summary>
         /// 是否显示
         /// </summary>
-        [SugarColumn(DefaultValue = "true")]
+        [SugarColumn(DefaultValue = "t")]
 		public bool IsShow { get; set; }
 
 		/// <summary>