title: How to check if iCloud is configured programmatically
body: <p>Here is the sentence from Apple Docs:
  "If iCloud is not configured, ask users if they want to configure it (and, preferably, transfer them to Launch Settings if they want to configure iCloud)."</p>
  
  <p>How can I check if iCloud is configured or not and how to launch settings for iCloud?</p>