initial frontend pages

frontend/src/App.vue

@@ -1,5 +1,10 @@
 <script setup lang="ts">
 import { RouterView } from 'vue-router';
+import { useWebsocket, WEBSOCKET_SYMBOL } from '@/composables/websocket';
+import { provide } from 'vue';
+
+const websocket = useWebsocket();
+provide(WEBSOCKET_SYMBOL, websocket);
 </script>
 
 <template>