Develop "port" of Registration App as pure React-Web for deployment on Square Space (if possible)

[CritiqalPete]

The Node+Heroku based registration flow needs to migrate to a more sustainable stack with more "data driven" UX (such as Waivers and demographic picklists).
Main Steps

• 1. Develop equivalent form and test on various user platforms including minspec - Test and Review/Polish
• 2. Deploy in Square Space and Test (Heroku as fallback)
• 3. Continue support for additional languages/localization
• 4. Apply Firebase Auth for families and coaches to create new records and access same for updating/editing- Test and Review/Polish
• 5. Apply data-driven features, especially Waivers
• 6. Add support for email notifications of accepted waivers/updates

[CritiqalPete]

for tracking all the steps

[CritiqalPete]

@lautirozen I think we can move #2 and #5,#6 into separate tickets and mark this done.