Revert "fix(qa): ISSUE-001 — feedback panel bleeds on mobile due to Tailwind v4 translate"

This reverts commit fbf30f9c73.

frontend/src/components/common/FeedbackWidget.tsx

@@ -130,13 +130,12 @@ export function FeedbackWidget() {
         ref={panelRef}
         className={cn(
           'fixed right-0 top-0 bottom-0 z-50 w-[280px] flex flex-col',
-          'duration-200 ease-out',
+          'transition-transform duration-200 ease-out',
+          open ? 'translate-x-0' : 'translate-x-full'
         )}
         style={{
           background: 'var(--color-bg-card)',
           borderLeft: '1px solid var(--color-border-default)',
-          transform: open ? 'translateX(0)' : 'translateX(100%)',
-          transition: 'transform 200ms ease-out',
         }}
         aria-hidden={!open}
       >