Show right side of precipitation graph on mobile

[Syntaf]

Dom [9:53 AM]
On mobile the precipitation table is default scrolled all the way to the left. Makes more sense to be all the way to the right so you can see the most up to date info first.

Acceptance Criteria:

• The desktop experience is unchanged
• The precipitation graph is displayed with the right-most date visible on mobile web

Related Files:

• views/area/watched_area/index.html.erb (Template)
• javascripts/landing_controller.js (JS controller)