chore!: simplify api handler (#6910)

Removes PayloadRequestWithData in favour of just PayloadRequest with
optional types for `data` and `locale`

`addDataAndFileToRequest` and `addLocalesToRequestFromData` now takes in
a single argument instead of an object

```ts
// before
await addDataAndFileToRequest({ request: req })
addLocalesToRequestFromData({ request: req })

// current
await addDataAndFileToRequest(req)
addLocalesToRequestFromData(req)
```

---------

Co-authored-by: Paul Popus <paul@nouance.io>

examples/auth/payload/src/app/(app)/_components/HydrateClientUser/index.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import type { Permissions } from 'payload/auth'
-import type { PayloadRequestWithData } from 'payload/types'
+import type { PayloadRequest } from 'payload/types'
 
 import { useEffect } from 'react'
 
@@ -9,7 +9,7 @@ import { useAuth } from '../../_providers/Auth'
 
 export const HydrateClientUser: React.FC<{
   permissions: Permissions
-  user: PayloadRequestWithData['user']
+  user: PayloadRequest['user']
 }> = ({ permissions, user }) => {
   const { setPermissions, setUser } = useAuth()