Implement portfolio admin management

lib/array.ts

@@ -0,0 +1,18 @@
+export function moveArrayItem<T>(items: T[], fromIndex: number, toIndex: number) {
+  if (
+    fromIndex < 0 ||
+    toIndex < 0 ||
+    fromIndex >= items.length ||
+    toIndex >= items.length ||
+    fromIndex === toIndex
+  ) {
+    return items;
+  }
+
+  const nextItems = [...items];
+  const [movedItem] = nextItems.splice(fromIndex, 1);
+
+  nextItems.splice(toIndex, 0, movedItem);
+
+  return nextItems;
+}