DIG-4409: Final Marriage Intention fixes before Registry review

[phillipbentonkelly]

DIG-4409: Final Marriage Intention fixes before Registry review

• [x] Getting Started Header line-height on Step1 (Instructions)
• [x] Mobile - Can we get spacing between the Note and the Start button Step 1: Getting Started
• [x] Mobile - Fix responsive dimensions for the Date input with multiple boxes
• [x] Mobile (Contact Info Step) - Fix Responsiveness of Email/Confirm Email inputs
• [x] Mobile (Contact Info Step) - Fix Responsiveness of Appt. Date inputs
• [x] Mobile (Review Step) - Fix Responsiveness of Person Header / Edit button
• [x] Mobile (Review Step) - Add space between form and Next button at the bottom