v1.2.0

Features:

• Sender & domain monograms can be changed to images or icons by right-click
• Help page added with feature walkthroughs & configurations - needs some de-slopificiation but offers some starting guidance
• Tags assigned to emails & senders appear as badges in msg rows

Fixes:

• Account group folder colours weren’t showing,
• Shift-select bulk messages was intermittent
• ‘mainly’ removed from header logo
• clicking header logo when in collapsed/half-screen mode now goes back to message list
• html parsing occasionally failed in previews