FIX: adjust mobile specificity

[awesomerobot]

This adjusts some specificity for mobile to fix a couple follow-up issues to a089aa0

1. The timeline button was appearing in some mobile cases where it shouldn't

2. The mobile timeline links weren't always working because they were getting caught by

    if (
      !classNames.some((className) =>
        document.body.classList.contains(className)
      )
    ) {
      return;
    }