The navigation drawer should look and feel consistent with the rest of the K-9 Mail and Thunderbird for Android Material 3 theme.
As the existing drawer is based on MaterialDrawer it has limited Material 3 support and doesn't allow us to easily adapt to the new design. Therefore we will rewrite the navigation drawer from scratch using Jetpack Compose.

Tasks:

• Move current drawer implementation to feature module #8032
• Add feature flag for Material 3 drawer #8103
• Change drawer to allow Compose UI rendering #8104
• Add the drawer account folder list #8118
• Add account top view #8120
• Add the unified folder list section #8121
• Add drawer bottom view #8122
• Add the account selection side rail #8123
• Fix account and folder selection #8142
• Remove LegacyDrawer implementation #8164 once new drawer works as expected

To improve on:

• Improve drawer sync mechanism #8146
• Save scroll position
• Starred and unread count need to be updated instantly
• Folder names should limited to 2 lines and shortened otherwise - 2 lines max limit for folder names #8738
• Image loading needs to be implemented (no contact picture) -> needs design first
• Feature could be split into api and implementation module
• Account name should be single line if email and display name are identical #8739
• [Onboarding] Disable Unified Inbox if there's only one account #7556
• Ellipsize folder name in the middle: support expected for compose foundation 1.8
• Show number of unread emails per account #8300

Related bugs:

• Wrong folders listed for account #8137
• Unread and star count are not properly updated for unified folders (old and new implementation)
• Provide Extra Width For Drawer #8204
• App crashes when I tap on "show accounts" in sidebar #8301
• Changing name of mail account does not change the two letters in account chip.  #8381
• Inbox in french too long in left panel #8487
• Crash while configuring the drawer #8548
• New menu forgets its "Hide accounts" setting #8709