Add moduleSuffixes to tsconfig (#11146)

Co-authored-by: Claude <noreply@anthropic.com>

src/components/hooks/useWelcomeModal.native.ts

@@ -1,3 +1,5 @@
-export function useWelcomeModal() {
+import {type WelcomeModalControl} from './useWelcomeModal.shared'
+
+export function useWelcomeModal(): WelcomeModalControl {
   throw new Error('useWelcomeModal is web only')
 }

src/components/hooks/useWelcomeModal.shared.ts

@@ -0,0 +1,5 @@
+export type WelcomeModalControl = {
+  isOpen: boolean
+  open: () => void
+  close: () => void
+}

src/components/hooks/useWelcomeModal.ts

@@ -2,8 +2,9 @@ import {useEffect, useState} from 'react'
 
 import {useSession} from '#/state/session'
 import {IS_WEB} from '#/env'
+import {type WelcomeModalControl} from './useWelcomeModal.shared'
 
-export function useWelcomeModal() {
+export function useWelcomeModal(): WelcomeModalControl {
   const {hasSession} = useSession()
   const [isOpen, setIsOpen] = useState(false)