Add sorting for key value fields

[enderahmetyurt]

Description

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

Fixes #1029

Checklist:

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

Screenshots & recording

Screen.Recording.2024-10-02.at.16.14.27.mov

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[enderahmetyurt]

@adrianthedev @Paul-Bob it should be ready :)

[Paul-Bob]

Looking good. Thank you @enderahmetyurt for this contribution!

[adrianthedev]

This is great @enderahmetyurt! Awesoem work!

There's only one thing I'd like to do more.
Move the arrows to the right side and make them blend in. Make them look like the trash icon (or even smaller if they look nice).

Thanks for working on this.