FEAT: Screenshots workflow

[andrinoff]

Is your feature request related to a problem?

No response

Describe the solution you'd like

A workflow that would generate screenshots of matcha at different states (e.g. in an email with inline images, e.t.c.)

Describe alternatives you've considered

Splicing up a full GIF demo?

Additional context

Roadmap

• Mock data (we need to be able to inject emails, contacts, e.t.c.)
• CI workflow
• Gallery in docs
• Gallery on website/README