Ability to construct Arbitrary Variants similar to the relative style dialog

As Tailwind’s Arbitrary Variants can work similarly to relative styling in Cwicly, it will be very intuitive to have a dialog similar to the one used for relative styles to create Arbitrary Variants.

This can have a free text input and a builder for choosing selectors (i.e. descendant, direct child, etc) and adding levels of nesting.

Thank you Cwicly team!