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.

BUG: 410914
FIXED-IN: 5.5.0
1 job for !55 with addenveditotbuttontoscriptlaunchconfig in 12 seconds (queued for 49 minutes and 9 seconds)
detached
Status Job ID Name Coverage
  Build
failed #21026
linux kf5-qt5 qt5.12

00:00:12

 
Name Stage Failure
failed
linux kf5-qt5 qt5.12 Build
Reinitialized existing Git repository in /builds/kossebau/kdevelop/.git/
From https://invent.kde.org/kossebau/kdevelop
- [deleted] (none) -> origin/addenveditotbuttontoscriptlaunchconfig
Checking out c325a78d as addenveditotbuttontoscriptlaunchconfig...
fatal: reference is not a tree: c325a78dc39c4204cde465d31f125f7ec24a23f6
Uploading artifacts...
WARNING: JUnitTestResults.xml: no matching files
ERROR: No files to upload
ERROR: Job failed: exit code 1