feat(a11y): form input labels (H-6), remaining button labels (C-1)
H-6: aria-label on all form inputs missing accessible names:
- Login: username, password (already done)
- Register: username, password, confirm, token, email
- Password reset: email, new password, confirm password
- Settings: display name, user ID to ignore, keyword, page zoom,
date format, device name, backup passwords (new/confirm/restore)
- Auth: server URL picker input
C-1: additional icon buttons:
- RoomInput: toolbar toggle (aria-pressed + label)
- Lobby/Members: scroll to top, toggle member list
- UIAFlowOverlay: cancel authentication
- BackupRestore: backup options menu
- UrlPreview: previous/next preview buttons
- RoomPacks: undo remove/remove pack buttons
- RoomViewHeader: start call, member list toggle
- ServerPicker: change server button
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Lotus Bot
d707c4441c