Script launcher: add env profile configure dialog button to config UI

Provides quick access to edit environments profiles or create new ones,
as desired for the current script launcher.
The same is already present in the config UI for the binary app launcher.
1 job for !55 with addenveditotbuttontoscriptlaunchconfig in 47 minutes and 43 seconds (queued for 2 seconds)
detached
Status Job ID Name Coverage
  Build
passed #16011
linux kf5-qt5 qt5.12

00:47:43

47.0%