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>

test/plugin-stripe/seed/index.ts

@@ -1,8 +1,8 @@
-import type { Payload, PayloadRequestWithData } from 'payload'
+import type { Payload, PayloadRequest } from 'payload'
 
 export const seed = async (payload: Payload): Promise<boolean> => {
   payload.logger.info('Seeding data...')
-  const req = {} as PayloadRequestWithData
+  const req = {} as PayloadRequest
 
   try {
     await payload.create({