Kh ss layout

navigate to localhost:4000/streetsweeping.html to test

- Adds the street sweeping page to denver-schedules
- Big search bar at the top of the page for easy typing
- Next event callout with ability to download calendar
- Street sweeping reminder sign-up for email and text
- Warning about information inaccuracies
- Responsive layout

Re-written a bajillion times 

:100: