feat(windows-terminal): add variants

[DaBultz]

Description

This PR: adds the Soft Text, Soft Dark and Soft Dark (Soft Text) variant to windows terminal

Assets

Checklist

• [X] PR description included
• [X] I've read the documents
• [X] I've created or commented in an issue related to this port asking to work on it
• [X] I know I shouldn't change any files in the packages folder manually
• [ ] I've added this port at the end of the related category list in the main README
• [ ] I've attached an image to the icon of the app that this port is related to
• [ ] I've attached a screenshot with a good zoom in fullscreen showing this port in action

[daltonmenezes]

Thank you so much @DaBultz and I'm sorry for the delay. 💜