Thalia Pay: Add an option to membership registrations to pay with Thalia Pay
One-sentence description
Add an option to membership renewals and registrations to pay with Thalia Pay
Motivation
Everyone wants to do this via Thalia Pay remotely!
Desired functionality
During registration (or after registration is approved, which is easier to build but less user friendly) people should have the possibility to immediately add a bank account and select payment via Thalia Pay.
Suggested implementation
To upload designs, you'll need to enable LFS and have admin enable hashed storage. More information