Add sorting for key value fields

[enderahmetyurt]

Description

Adding up and down button to sort key-value fields.

Fixes #1029

Checklist:

• [X] I have performed a self-review of my own code
• [X] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [X] I have added tests that prove my fix is effective or that my feature works

Screenshots & recording

https://github.com/user-attachments/assets/ac6fc098-ee4c-486b-8b4c-4839a5acc069