Bank account payments can be submitted without signing in first

[jonathanstegall]

This causes an error, of course, but it indicates that the sign in link is a usability issue.

Possible solutions

• if they click the place donation button without having signed in to their bank account, alert them that they have to do that first.
• catch the server side error when there is no payment method token
• don't allow the place donation button to be clickable without signing in to the bank account first
• make the sign in link more usable
• if possible, make the place donation button trigger the Plaid interface, then after that immediately go on to payment (not sure if this is possible)

[jonathanstegall]

We should also do a server side check here, and if the user doesn't have a Stripe token/payment method, we should show them an error based on the payment type field they have selected.

[jonathanstegall]

Commit ac3c881 allows the donate button to trigger the plaid interface. I'm just not sure if this is usable. Maybe if the button has different language.

[jonathanstegall]

Commit 3093fe2 is the server side portion mentioned above.