Contact submit tweaks.
Contact submit tweaks.

Show success response for longer and change text.
Better handling of errors coming back from the submit API.
Fixes #272. Fixes #289.

steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap,steamclock/internetmap