Various refinements, mostly to tablet version

- Relegating search to button in tablet
- Refining dropdowns (now they will close if user clicks outside)
- Whitelisting phone icons instead of blacklisting them like they were
before so if any show up without an icon they won’t appear
- Stopping the “scroll header” from appearing on iOS devices because
iOS Safari plays animations triggered on a scroll event after the
scroll is finished, making the scroll header more of a hindrance than a
help
- Removing some unneeded code