Position the clear button relative to the right divider instead of
following the tab labels, ensuring consistent positioning across
different language translations. Also fix tab switching jitter by
setting a fixed header height.
Consolidate duplicated TabHeader + close button layout (8 occurrences) into a single
InspectLayout wrapper. Replace boolean props with children slots for better composition.
Co-Authored-By: Claude Opus 4.5 <[email protected]>
yyh