Add commas to the result counts in Global Search

Problem to solve

Today, we do not show commas in the counts within Global Search, which makes these numbers a bit more difficult to read and is not consistent with how we display counts in other places. This applies to both the tab counts, as well as the results count information underneath the tabs (for the selected tab).

Solution

Update these counts to include commas, similar to other examples in our product (list pages, sidebar navigation, etc.).