Added sse and a new screen

frontend/src/views/Game/EndGame.vue

@@ -0,0 +1,18 @@
+<template>
+  <div>
+    <button @click="endGame">
+      Закончить игру
+    </button>
+  </div>
+</template>
+
+<script setup>
+import axios from 'axios'
+import { useRouter } from 'vue-router';
+const router = useRouter()
+
+function endGame() {
+  axios.post(process.env.VUE_APP_BACKEND + '/end')
+  router.push('/login')
+}
+</script>