Feature: Simplified Dashicon selection for Admin Menu in Edit Pods

[PodsBot]

Feature: Simplified Dashicon selection for Admin Menu in Edit Pods submitted via Slack by jimtrue

[jimtrue]

This was brought up again during the WPStudio seminar as to how helpful this would be. Here's an example plugin that's doing a really good job of it.

https://wordpress.org/plugins/dashicons-cpt/

[JoryHogeveen]

A custom option would still be a good idea since it is possible to append your own icons.

[jimtrue]

See also #4298 @JoryHogeveen