feat: refactor NewDates, clean up legacy code

This reverts commit 0c7836fa59.

apps/scandic-web/components/HotelReservation/MyStay/Modal/ModalContent/Header/header.module.css

@@ -0,0 +1,15 @@
+.header {
+  display: grid;
+  gap: var(--Space-x05) var(--Space-x2);
+  grid-template-columns: 1fr auto;
+}
+
+.close {
+  align-items: center;
+  background: none;
+  border: none;
+  cursor: pointer;
+  display: flex;
+  justify-content: center;
+  padding: 0;
+}

apps/scandic-web/components/HotelReservation/MyStay/Modal/ModalContent/Header/index.tsx

@@ -0,0 +1,24 @@
+import { Button as ButtonRAC } from "react-aria-components"
+
+import { MaterialIcon } from "@scandic-hotels/design-system/Icons/MaterialIcon"
+
+import Subtitle from "@/components/TempDesignSystem/Text/Subtitle"
+
+import styles from "./header.module.css"
+
+interface HeaderProps extends React.PropsWithChildren {
+  handleClose: () => void
+  title: string
+}
+
+export default function Header({ children, handleClose, title }: HeaderProps) {
+  return (
+    <header className={styles.header}>
+      <Subtitle>{title}</Subtitle>
+      <ButtonRAC className={styles.close} onPress={handleClose}>
+        <MaterialIcon icon="close" color="Icon/Interactive/Placeholder" />
+      </ButtonRAC>
+      {children}
+    </header>
+  )
+}