improvements: ui improvements & add users to org from project member invite modal

frontend/src/components/v2/PageHeader/PageHeader.tsx

@@ -1,15 +1,17 @@
 import { ReactNode } from "@tanstack/react-router";
+import { twMerge } from "tailwind-merge";
 
 type Props = {
   title: ReactNode;
   description?: ReactNode;
   children?: ReactNode;
+  className?: string;
 };
 
-export const PageHeader = ({ title, description, children }: Props) => (
-  <div className="mb-4">
+export const PageHeader = ({ title, description, children, className }: Props) => (
+  <div className={twMerge("mb-4", className)}>
     <div className="flex w-full justify-between">
-      <div>
+      <div className="w-full">
         <h1 className="mr-4 text-3xl font-semibold capitalize text-white">{title}</h1>
       </div>
       <div>{children}</div>