Test and Finalize Email submission for appointment form

[MisterMunchkin]

Final UI changes should be complete by now. Test to make sure that the actual email submission works as intended.

Acceptance Criteria

• On form submit, it should send the information to the clinic email
• Should show appointment request sent page when send is successful
• Should show appointment request failed notification when send is unsuccessful.

Technical Details Currently, the send successful page can be navigated even if there is no actual submission. In a future story, we need to devise a way to fix this (database read, or email service read).

[MisterMunchkin]

we should probably just work on #74 too