Improve length_indicator display

[BrianGilbert]

Is your feature request related to a problem? Please describe.
As an editor I want some nice visual feedback that I am within accepted limits for text lengths

Describe the solution you'd like

• Emulate password length styling for indicator

• Incorporate into maxlength module

Describe alternatives you've considered

Additional context

• https://www.drupal.org/project/length_indicator
• https://www.drupal.org/project/maxlength