Refactor the Automate Package Internalizer page

### Checklist

- [x] I have verified this is the correct repository for opening this issue.
- [x] I have verified no other issues exist related to my request.

### Is Your Feature Request Related To A Problem? Please describe.

This docs page provides outdated information and duplicates information that is better served elsewhere in the docs.

### Describe The Solution. Why is it needed?

Refactoring this page to provide clarity and links directly to the latest information will benefit users and customers as well as limit the amount of maintenance needed to keep the documentation up-to-date.

### User Story

As a Chocolatey user, having the current and most relevant information easily accessible is important to me.

### Additional Context

_No response_

### Acceptance Criteria

- [ ] Provide information for installing Jenkins for package internalization automation.
- [ ] Remove outdated information referencing Chocolatey Server.
- [ ] Refactor page for clarity and consistency.

### Related Issues

_No response_