improve settings import/export

FluentTerminal.App.Services/Exceptions/ReadTextFileException.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace FluentTerminal.App.Services.Exceptions
+{
+    public class ReadTextFileException : Exception
+    {
+        public ReadTextFileException() : base()
+        {
+        }
+
+        public ReadTextFileException(string message) : base(message)
+        {
+        }
+
+        public ReadTextFileException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+
+        protected ReadTextFileException(System.Runtime.Serialization.SerializationInfo info, System.Runtime.Serialization.StreamingContext context) : base(info, context)
+        {
+        }
+    }
+}