Implement e-mail subscription

[andrerpena]

The goal is to have an e-mail subscription in such a way that whatever filter is applied to https://remoted.io can be transformed into an e-mail subscription. For example: It will be able to subscribe to only react jobs with salary, excluding US-only jobs.

• Create the newsletter_subscription table and associated TypeScript type
• Implement the email HTML generation
• Implement the NewsletterSubscriptionService with functions to add and remove a subscription
• Implement GraphQL mutations to add and remove subscription
• Implement the HTTP endpoint to unsubscribe, including the UI
• Add a form to remoted.io to subscribe
• Implement the logic to actually send the e-mails through Amazon SES

[andrerpena]

I'm currently trying to simply render the React component used for displaying jobs on remoted.io using Juice to inline all styles and images so that I don't have to maintain two codes. The e-mail would be exactly like the website:

[andrerpena]

That is not exactly easy. There are complications like: What CSS should I include? Should I include fonts? Is it possible to inline fonts? How to I embed company logo images?

Using https://github.com/niftylettuce/email-templates has the disadvantage that I have to implement the e-mail manually, as opposed to just "juice" the current job list but it has the advantage that I don't have to make everything that exists already to also work inside the e-mail context