searchLanguage method
Implementation
bool searchLanguage(String query) {
if (query.startsWith("+")) query = query.replaceAll("+", "").trim();
final languageCode = this.languageCode ?? "";
final languageName = this.languageName ?? "";
final name = this.name ?? "";
return languageCode.toLowerCase().startsWith(query.toLowerCase()) ||
languageName.toLowerCase().startsWith(query.toLowerCase()) ||
name.toLowerCase().startsWith(query.toLowerCase());
}