Stylebook: avoid double line in subcategory titles

[matiasbenedetto]

What?

Stylebook: avoid double lines in subcategory titles

Why?

Fixes a visual regression presumably introduced in #67546

How?

CSS adjustments.

Testing Instructions

Navigate to the 'theme' tab of the stylebook and observe the titles.

Screenshots or screencast

Before	After

[github-actions]

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Co-authored-by: matiasbenedetto <[email protected]>
Co-authored-by: tellthemachines <[email protected]>
Co-authored-by: jasmussen <[email protected]>

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[tellthemachines]

Thanks for fixing this! LGTM ✅

[jasmussen]

The border should be above, so this is not quite right:

Admittedly trunk looks like this:

But the fix is to remove the "border-bottom" from here:

.edit-site-style-book__subcategory-title {
    font-size: 16px;
    margin-bottom: 40px;
    /* border-bottom: 1px solid #ddd; */
    padding-bottom: 8px;
}

That makes it look as intended:

If you can update that, let's land this and thank you!

[matiasbenedetto]

The border should be above

Fixed in the latest commit. Thanks.

[jasmussen]

Nice! 🚢