Fix xlarge breakpoint

[marinaaisa]

Bug/issue #128869276, if applicable:

Summary

• Fix breakpoints, adding a maxWidth to the large one
• Add xlarge breakpoint to TopicsLinkCardGrid

Dependencies

NA

Testing

Steps:

1. Run a doccarchive with a TopicsLinkCardGrid component on it
2. Test it in a xlarge viewport and assert that it shows a pager of 8 items per row
3. Assert that when resizing from xlarge viewport to large viewport, it shows a pager of 6 items per row

Checklist

Make sure you check off the following items. If they cannot be completed, provide a reason.

• Added tests
• Ran npm test, and it succeeded
• Updated documentation if necessary