Email reading sorta works

What's Changed

• Faster and more comprehensive folder updates
• Faster initial sync due to deferred email download
• A basic html renderered with litehtml
• Fix list jumps on email folders with more than 200 emails
• Improved flatpak
• Adopted ninja as build system
• Implemented shell notifications
• Adopt GNOME 45 runtime
• Adopted libadwaita and adaptive UI
• Folders are now ordered in a more intuitive way, with "Inbox" at the top.

New Contributors

• @dependabot made their first contribution in #225
• @kianmeng made their first contribution in #230
• @epilys made their first contribution in #237

Full Changelog: 0.1...0.2

Basic reading functionality

0.1

Implement folder list display