createConfig function
void
createConfig()
Implementation
void createConfig() {
print(configCreationMsg);
if (File(configFile).existsSync()) File(configFile).deleteSync();
File(configFile).createSync(recursive: true);
final Map<String, String> config = {};
questions.forEach((key, value) => config[key] = ask(value));
File(configFile).writeAsStringSync(
config.entries.map((entry) => '${entry.key}: ${entry.value}').join('\n'));
print(successMsg);
exit(0);
}