Merged in chore/next15 (pull request #1999)

chore (SW-834): Upgrade to Next 15

* wip: apply codemod and upgrade swc plugin

* wip: design-system to react 19, fix issues from async (search)params

* wip: fix remaining issues from codemod

serverClient is now async because context use headers()
getLang is now async because it uses headers()

* Minor cleanup

* Inline react-material-symbols package

Package is seemingly not maintained any more and doesn't support
React 19. This copies the package source into `design-system`,
makes the necessary changes for 19 and export it for others to use.

* Fix missing awaits

* Disable modal exit animations

Enabling modal exit animations via isExiting prop is causing
modals to be rendered in "hidden" state and never unmount.
Seems to be an issue with react-aria-components,
see https://github.com/adobe/react-spectrum/issues/7563.
Can probably be fixed by rewriting to a solution similar to
https://react-spectrum.adobe.com/react-aria/examples/framer-modal-sheet.html

* Remove unstable cache implementation and use in memory cache locally

* Fix ref type in SelectFilter

* Use cloneElement to add key prop to element


Approved-by: Linus Flood

apps/scandic-web/hooks/useClickOutside.ts

@@ -1,7 +1,7 @@
 import { useEffect } from "react"
 
 export default function useClickOutside(
-  ref: React.RefObject<HTMLElement>,
+  ref: React.RefObject<HTMLElement | null>,
   isOpen: boolean,
   callback: () => void
 ) {

apps/scandic-web/hooks/useScrollToTop.ts

@@ -2,7 +2,7 @@ import { type RefObject, useEffect, useState } from "react"
 
 interface UseScrollToTopProps {
   threshold: number
-  elementRef?: RefObject<HTMLElement>
+  elementRef?: RefObject<HTMLElement | null>
   refScrollable?: boolean
 }
 

apps/scandic-web/hooks/useStickyPosition.ts

@@ -12,7 +12,7 @@ import { debounce } from "@/utils/debounce"
 import { useIsLangLive } from "./useIsLangLive"
 
 interface UseStickyPositionProps {
-  ref?: React.RefObject<HTMLElement>
+  ref?: React.RefObject<HTMLElement | null>
   name?: StickyElementNameEnum
   group?: string
 }