title: Rails 5.2 + Trix + ActiveStorage
body: <p>How can I upload images in Trix editor with Rails 5.2 configured with ActiveStorage?</p>
  
  <p>I saw some videos using others uploaders, but could not adapt the idea to ActiveStorage. </p>
  
  <p>Other (maybe) solution is: use ActionText with Rails 5.2. Is it safe to use already?</p>