refactor: remove redundant admin checks from pages (now handled by router)

src/pages/ventas_para_tryton.vue

@@ -9,10 +9,5 @@
       const authStore = useAuthStore();
       return { authStore };
     },
-    mounted() {
-      if (!this.authStore.isAdmin) {
-        this.$router.push('/');
-      }
-    },
   }
 </script>