Document state changes for consent

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Which topic?

https://developer.adobe.com/client-sdks/documentation/privacy-and-gdpr/

### What's wrong with the content?

Along with the states description for collect consent settings, include details about changes between states. E.g.
p -> n
p -> y

### What changes do you propose?

_No response_

### Anything else that can help to cover this?

_No response_

Open the privacy and GDPR documentation page linked in the issue and find the description of collect consent settings. Document the changes between consent states, including examples such as p -> n and p -> y. Done means the page explains the relevant state transitions alongside the existing state descriptions.

Written by the indexing model from the issue text.