Inline render DartDoc

[rensPols]

I would really like DartDoc to be rendered inline, just like JavaDoc and KDoc can be rendered inline. It would just make it a bit easier on the eye.

[jwren]

Thank you for the feature request. Java developers in the IDEA stack have these features which are fantastic. Please consider researching and attaching the appropriate pieces of documentation for the extension for the Flutter or Dart Plugin. This feature would probably be implemented in the Dart Plugin for IntelliJ portion of our stack with the Dart PSIs.