feat: Add year to timestamp when exporting CSV

Author: Yousa-Mirage

src/utils/HistoryLogger.cs

@@ -230,7 +230,7 @@ FROM TranslationHistory
                     DateTime localTime = DateTimeOffset.FromUnixTimeSeconds((long)Convert.ToDouble(unixTime)).LocalDateTime;
                     history.Add(new TranslationHistoryEntry
                     {
-                        Timestamp = localTime.ToString("MM/dd HH:mm"),
+                        Timestamp = localTime.ToString("yyyy-MM-dd HH:mm:ss"),
                         TimestampFull = localTime.ToString("MM/dd/yy, HH:mm:ss"),
                         SourceText = reader.GetString(reader.GetOrdinal("SourceText")),
                         TranslatedText = reader.GetString(reader.GetOrdinal("TranslatedText")),