fix: crate or update user

src/lib/utils.ts

@@ -4,3 +4,17 @@ import { twMerge } from "tailwind-merge"
 export function cn(...inputs: ClassValue[]) {
   return twMerge(clsx(inputs))
 }
+
+/**
+ * Removes undefined values from an object to prevent Firestore errors
+ * @param obj The object to filter
+ * @returns A new object with undefined values removed
+ */
+export function filterUndefinedValues<T extends Record<string, any>>(obj: T): Partial<T> {
+  return Object.entries(obj).reduce((acc, [key, value]) => {
+    if (value !== undefined) {
+      acc[key as keyof T] = value;
+    }
+    return acc;
+  }, {} as Partial<T>);
+}