remove static method
Remove a key from the session
Implementation
static Future<void> remove(String key) async {
final sessionId = CookieService.get('FLINTSESSID');
final data = await SessionManager.instance.getSession(sessionId);
if (data == null) return;
data.remove(key);
// Save the updated session
await SessionManager.instance.createSession(_response.raw, data);
}