Extend Recently Reviewed card to match sibling heights

Use flex-1 on the Recently Reviewed card so it stretches to fill the
remaining vertical space in the left column, aligning its bottom with
Juror Workload and Activity Feed. Add className prop to AnimatedCard.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/shared/animated-container.tsx

@@ -3,9 +3,10 @@
 import { motion } from 'motion/react'
 import { type ReactNode } from 'react'
 
-export function AnimatedCard({ children, index = 0 }: { children: ReactNode; index?: number }) {
+export function AnimatedCard({ children, index = 0, className }: { children: ReactNode; index?: number; className?: string }) {
   return (
     <motion.div
+      className={className}
       initial={{ opacity: 0, y: 12 }}
       animate={{ opacity: 1, y: 0 }}
       transition={{ duration: 0.3, delay: index * 0.05, ease: 'easeOut' }}