src/components/MenuRow.vue

@@ -35,13 +35,11 @@ export default {
     updateActiveMenu(event) {
       const elem = event.target
       const value = elem.id
-      this.$store.commit('setActiveMenu', value)
+      if (value == this.activeMenu)
+        this.$store.commit('setActiveMenu', "")
+      else
+        this.$store.commit('setActiveMenu', value)
     },
-    isActive(event) {
-      const elem = event.target
-      if (elem.id === this.activeMenu) return true
-      return false
-    }
   }
 }
 </script>