Style panel set properties indication doesn't work in case of calc()

[kof]

Discussion

Repro

1. Set height to calc(10px)
2. Collapse the section
3. See the section dot indication doesn't display the value

[victorchrollo14]

hey @TrySound. are you working on this one.

I figured out what the issue is. we are not returning the dots array for css values whose type is unparsed, so when we set the value to calc(), the type is set as unparsed, hence the an empty array is returned.

if (
      styleDecl.usedValue.type === "unparsed" ||
      styleDecl.usedValue.type === "guaranteedInvalid"
    ) {
      return [];
    }

we could fix this in two ways.

1. simply check if the styleDecl.usedValue.value contains calc in it and then we return the dots array. ( but I don't think this is a good fix )
2. create a new type for calc() called computed, similar to how we have keyword type for values like auto, initial, inherit etc and unit type for values like em, %, px etc, so we don't treat cacl() as unparsed type.

[TrySound]

These checks were added in this PR. Not sure it is the right solution. Let's delete it.