feat: added export to csv file

CounterInfo.cs

@@ -1,20 +1,23 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using CsvHelper.Configuration.Attributes;
 
-namespace TelegramMessageCounter
-{
-    internal record CounterInfo
-    (
-        float MessageMultiplier,
-        float SymbolsMultiplier,
-        int UserMessageCount,
-        int TargetMessageCount,
-        int UserSymbolsCount,
-        int TargetSymbolsCount,
-        int FullMessageCount,
-        string TargetUsername
-    );
-}
+namespace TelegramMessageCounter;
+
+public record CounterInfo(
+    [property: Name("Message multiplier")]
+    float MessageMultiplier,
+    [property: Name("Symbols multiplier")]
+    float SymbolsMultiplier,
+    [property: Name("Your messages")]
+    int UserMessageCount,
+    [property: Name("Target messages")]
+    int TargetMessageCount,
+    [property: Name("Your symbols")]
+    int UserSymbolsCount,
+    [property: Name("Target messages")]
+    int TargetSymbolsCount,
+    [property: Name("All messages")]
+    int FullMessageCount,
+    [Index(0)]
+    [property: Name("Target username")]
+    string TargetUsername
+);