add spot name, weekday, and swell label to detail view, fix bug that was pulling the wrong hour's information to the detail view

- renamed the getters for spotLibrary that return information about now and the next 24 hours to be clearly about the next 24 hours. I was using these functions and asking for their information indexed at the currentHour (which is 13 at noon), but these functions consider now to be 0 and 24 to be 24 hours from now. I renamed these functions so I don't make this silly mistake again