Increase team/graveyard pokemon sprite size

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

frontend/src/components/PokemonCard.tsx

@@ -24,10 +24,10 @@ export function PokemonCard({ encounter, showFaintLevel, onClick }: PokemonCardP
         <img
           src={displayPokemon.spriteUrl}
           alt={displayPokemon.name}
-          className="w-16 h-16"
+          className="w-25 h-25"
         />
       ) : (
-        <div className="w-16 h-16 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-xl font-bold text-gray-600 dark:text-gray-300">
+        <div className="w-25 h-25 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-xl font-bold text-gray-600 dark:text-gray-300">
           {displayPokemon.name[0].toUpperCase()}
         </div>
       )}