Add web interface with admin functionality (#167)

web/src/lib/components/shared/click-outside.ts

@@ -0,0 +1,15 @@
+export function clickOutside(node: Node) {
+  const handleClick = (event: any) => {
+    if (!node.contains(event.target)) {
+      node.dispatchEvent(new CustomEvent("outclick"));
+    }
+  };
+
+  document.addEventListener("click", handleClick, true);
+
+  return {
+    destroy() {
+      document.removeEventListener("click", handleClick, true);
+    }
+  };
+}