translate method
Implementation
Future<String> translate(text, fromLanguage, toLanguage) async {
final queryParameters = {
'sl': fromLanguage,
'tl': toLanguage,
'q': text,
};
final url = Uri.https(
"translate.google.com",
"/m",
queryParameters,
);
final response = await _client.get(url);
return _parseTranslate(response.body);
}