more optimizations

api/frontend/js/checkbox.js

@@ -0,0 +1,8 @@
+const dhcp_enabled = document.querySelector("#dhcp_enabled");
+const dhcp_rect_body = document.querySelector("#dhcp_rect_body");
+
+dhcp_enabled.addEventListener("click", () => {
+    !dhcp_enabled.checked
+        ? dhcp_rect_body.classList.add("hidden")
+        : dhcp_rect_body.classList.remove("hidden");
+});