Self-verify feature

[eelcoj]

Currently I need to manually verify projects. Not a problem with the low amount of projects, but adding a feature that sends an email to an address with the same domain as their website with a link to click would “good enough”.

Set up some basics here: https://github.com/Rails-Designer/railsstats.com/blob/main/app/models/project/verify.rb

Maybe also store given email (encrypted) so in the future reminders to update can be sent?