[PLAY-1304] fix Kit Collection page when Pagination is present

[ElisaShapiro]

What does this PR do? A clear and concise description with your runway ticket url.
PLAY-1304 allows for pagination to appear in a kit_collection. This ticket is similar to one noticed on the Navigation kit_show page due to Pagination which was fixed in PLAY-1266.

I have also removed the kit_collection_show method from the pages controller as it has been made redundant by kit_collection_show_rails and kit_collection_show_react (side note: doesn't look like there is the ability to see a swift kit_collection yet on live per my testing example here). The routes and kit_collection view must remain unchanged or there is funky behavior with the URL/query parameters and too much defaulting to rails.

Screenshots:
Screenshots below show Pagination appearing in kit collection when 1st or subsequent item in the kit collection

How to test? Steps to confirm the desired behavior:

1. Go to a kit collection with pagination included (Table and Pagination, Pagination and Table, Table and Pagination with /rails in URL)
2. If not already on Pagination in Nav, click on Pagination Nav tab
3. Pagination kit example should appear in kit_collection view without error

Checklist:

• LABELS Add a label: enhancement, bug, improvement, new kit, deprecated, or breaking. See Changelog & Labels for details.
• DEPLOY I have added the milano label to show I'm ready for a review.
  - [ ] TESTS I have added test coverage to my code.