细节完善

src/pages/melee-match.vue

@@ -25,7 +25,6 @@ const start = ref(false);
 const countDown = ref(90);
 const battleId = ref("");
 const currentRound = ref(1);
-const totalRounds = ref(0);
 const power = ref(0);
 const scores = ref([]);
 const tips = ref("即将开始...");