normalizePersian method
Arabic ي/ك → Persian ی/ک and removes tatweel (ـ), for search and saving. "علي" → "علی"
Implementation
String normalizePersian() => replaceAll("ي", "ی").replaceAll("ى", "ی").replaceAll("ك", "ک").replaceAll("ـ", "").replaceAll("ة", "ه");