edit cooperative page and functionality

pages/index.vue

@@ -79,8 +79,9 @@ export default {
   },
   async mounted() {
     try {
+      const config = useRuntimeConfig()
       const response = await $fetch('/initial', { 
-        baseURL: this.$config.public.baseURL,
+        baseURL: config.public.baseURL,
         method: 'GET'
       })
       this.cards = response.cards