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/components/HotelReservation/SelectHotel/helpers.ts

@@ -24,6 +24,7 @@ import type {
   HotelLocation,
   Location,
 } from "@/types/trpc/routers/hotel/locations"
+import type { SelectHotelParams } from "@/utils/url"
 
 interface AvailabilityResponse {
   availability: HotelsAvailabilityItem[]
@@ -39,7 +40,7 @@ type Result = AvailabilityResponse | null
 type SettledResult = PromiseSettledResult<Result>[]
 
 async function enhanceHotels(hotels: HotelsAvailabilityItem[]) {
-  const language = getLang()
+  const language = await getLang()
   return await Promise.allSettled(
     hotels.map(async (availability) => {
       const hotelData = await getHotel({
@@ -65,7 +66,8 @@ async function fetchAlternativeHotels(
   hotelId: string,
   input: AlternativeHotelsAvailabilityInput
 ) {
-  const alternativeHotelIds = await serverClient().hotel.nearbyHotelIds({
+  const caller = await serverClient()
+  const alternativeHotelIds = await caller.hotel.nearbyHotelIds({
     hotelId,
   })
 
@@ -73,20 +75,20 @@ async function fetchAlternativeHotels(
     return null
   }
 
-  return await serverClient().hotel.availability.hotelsByHotelIds({
+  return await caller.hotel.availability.hotelsByHotelIds({
     ...input,
     hotelIds: alternativeHotelIds,
   })
 }
 
 async function fetchAvailableHotels(input: AvailabilityInput) {
-  return await serverClient().hotel.availability.hotelsByCity(input)
+  const caller = await serverClient()
+  return await caller.hotel.availability.hotelsByCity(input)
 }
 
 async function fetchBookingCodeAvailableHotels(input: AvailabilityInput) {
-  return await serverClient().hotel.availability.hotelsByCityWithBookingCode(
-    input
-  )
+  const caller = await serverClient()
+  return await caller.hotel.availability.hotelsByCityWithBookingCode(input)
 }
 
 function getFulfilledResponses<T>(result: PromiseSettledResult<T | null>[]) {
@@ -161,7 +163,9 @@ function sortAndFilterHotelsByAvailability(
 }
 
 export async function getHotels(
-  booking: SelectHotelSearchParams | AlternativeHotelsSearchParams,
+  booking: SelectHotelParams<
+    SelectHotelSearchParams | AlternativeHotelsSearchParams
+  >,
   isAlternativeFor: HotelLocation | null,
   bookingCode: string | undefined,
   city: Location,