* fix(ui): restore highlight options layout and clean up color name editing
Restore the pre-#3741 layout for both the AnnotationPopup highlight
options row and the HighlightColorsEditor settings panel.
HighlightOptions: re-add `justify-between` on the outer container and
remove `flex-1` from the color strip so the gap between the style box
and color strip responds to the number of colors.
HighlightColorsEditor: restore `grid-cols-3 sm:grid-cols-5` grid,
remove always-visible name inputs, and add a click-to-edit popover on
each color circle with hover tooltip for the label.
Add a browser screenshot test that renders the real AnnotationPopup
component with Tailwind CSS and compares against baseline PNGs for
5, 10, and 15 colors.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Huang Xin
ae2c421938