* ♻️ Use a DS icon button to remove imported SVG attributes
Replace the raw remove button of each imported SVG attribute with the DS
ghost icon button and the DS remove icon. The button had no title, so it
gets a new "Remove attribute" label, which the DS tooltip shows. Drop the
wrapper div that only held the button.
Add a visual test that selects a group imported from SVG so the section
shows.
AI-assisted-by: claude-opus-5-5
* ♻️ Move imported SVG attributes styles to DS tokens
The remove button is a DS icon button now, so .attr-actions and
.attr-action-btn with their button placeholders go away. Inline the flex
and ellipsis mixins, move spacing to DS tokens and logical properties,
sizes to px2rem and the title color alias to its DS token.
Use the DS body-small typography; its line-height is 1.3 instead of 1.4.
Drop the line clamp rules of the attribute name: its later display:
inline-block already overrode the -webkit-box they need.
The refactor/ import stays only for %input-element on the value input,
which moves with the inputs migration.
AI-assisted-by: claude-opus-5-5
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