MS: Fix pagination in MS Sites List Table when entering a page number.

When a page number is manually entered in the sites list table and no bulk action is selected, add `paged` as a query argument to the redirect.

Fixes #32982.

Built from https://develop.svn.wordpress.org/trunk@35917


git-svn-id: https://core.svn.wordpress.org/trunk@35881 1a063a9b-81f0-0310-95a4-ce76da25c4cd