B9 Form Finalization

[Oddvocado]

• [x] Finished up the B9 form by adding client-side and backend validation.
• [x] Adjusted the form so it properly displays the correct questions and question number/format

[ashleybot]

@Oddvocado Validation, question numbering, and UI behaviors all look good.

The B9 is the same questions for all visit types, but it has a note that shows up on some questions for follow-up visits only. For these questions:

NOTE: Enter 0 if this information was provided on a previously submitted Form B9.

• [x] Question 5
• [x] Question 10
• [x] Question 15
• [x] Question 21

You can see an example of this here: https://sbcoa-app-uds-test.azurewebsites.net/Symptoms/Edit/5

NACC documentation: https://files.alz.washington.edu/documentation/uds3-fvp-b9.pdf

[Oddvocado]

@ashleybot good catch! I've added the radio buttons and updated the questions of the follow up visits.

[ashleybot]

@smiththay Could you review this PR?

[smiththay]

Good to merge!