fix: 🤍 weiß für nicht-Favoriten, ❤ rot für Favoriten überall

frontend/src/tools/media.jsx

@@ -227,8 +227,7 @@ function MovieCard({ movie, favIds, hasXrel, onToggleFav, onOpenModal }) {
           position:'absolute', top:5, right:5, background:'rgba(0,0,0,0.65)',
           border:'none', borderRadius:'50%', width:30, height:30, cursor:'pointer',
           fontSize:14, display:'flex', alignItems:'center', justifyContent:'center',
-          color: isFav ? '#f87171' : 'rgba(248,113,113,0.5)',
-        }}>{isFav ? '❤' : '♡'}</button>
+        }}>{isFav ? '❤' : '🤍'}</button>
       </div>
       <div style={{ padding:'8px 10px', flex:1, display:'flex', flexDirection:'column', gap:3 }}
            onClick={() => onOpenModal({ id: movie.id, media_type: movie.media_type || 'movie' })}>