automatically detect file encoding when importing delimiter-separated values (DSV) file

src/locales/ru.json

@@ -1443,6 +1443,7 @@
     "No results": "Нет результатов",
     "Unknown": "Неизвестно",
     "Auto detect": "Auto detect",
+    "Detecting...": "Detecting...",
     "Miscellaneous": "Разное",
     "Default": "По умолчанию",
     "Included": "Included",
@@ -1896,6 +1897,7 @@
     "Data File": "Файл данных",
     "Data to import": "Data to import",
     "Please select a file to import": "Please select a file to import",
+    "Unable to detect the file encoding automatically. Please select the actual encoding.": "Unable to detect the file encoding automatically. Please select the actual encoding.",
     "Include Header Line": "Include Header Line",
     "Time Format": "Time Format",
     "Transaction Type Mapping": "Transaction Type Mapping",