ext.pages Documentation Fixes

[plun1331]

Summary

Fixes some documentation issues:

• Changes the 'documentation for' dropdown
  
• Fixes typos
• Moves Parameters to the top of the class' documentation
  
• Adds timeout to pages.Paginator's parameters

Checklist

• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why
• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed)
• This PR is not a code change (e.g. documentation, README, typehinting, examples, ...)

[krittick]

Good PR, thanks for the updates!