[EPIC] Set better defaults for QR code import

[kewisch]

🎯 The objective

The goal of this project is to improve the experience of users importing their accounts from Thunderbird desktop.

🎒 Resources

🦮 Rules of the Road

🟢 In Scope

• Make sure sync/push settings have good defaults when doing a QR code import, or make sure the user can set things the way they would in the FTUE
• Stretch: find a way to prompt existing users to “optimize” their settings
  • e.g. tell users what the default value is after importing and where they can change it

🔴 Out of Scope

• Change what data Thunderbird desktop includes in QR code

Project tasks

Cross-Functional Tasks

🎨 Design

• Develop a design for the new in-app notification area

⁉️ QA

• Add new test cases for release smoke test

🤝 Support - Product

• Update SUMO articles to better describe the new error situations