Fix page controls listing incorrect page range when collection size changes

[cliechty]

The issue:

• Given a collection that renders 10 pages
• and maxSize= 5
• and displaying page in the upper range of pages (8 for example)
• The page range shows: 1, ..., 8, 9, 10
• When an item is removed from collection
• Then the page range shows: 1, 2, 3, ..., 10 with current page still set to 8
• It should still show the page range: 1, ..., 8, 9, 10

[michaelbromley]

Thanks for the excellent pull request!

Yes, I could reproduce the issue you describe and your fix works well. You are also the first person to make a PR to this repo with a unit test for your change, so I award you 1,000 programming points. Good work!