Fix some typos

[mrs1669]

Overview

I would like to submit a Pull Request to correct a typo I found while researching the required reason API in response to Privacy Manifest. (Privacy Manifest対応でrequired reason APIの調査をしていた際に見つけたタイポの修正PR出させていただきます)

1. Bu dd on -> Button
2. fail d -> failed
3. Re s quest -> Request
4. wi d h -> with
5. cpoint -> cgPoint
6. Stam -> Stamp
7. low w er -> lower