net-im/iamb: New Port: Matrix client for Vim addicts

iamb is a Matrix client for the terminal that uses Vim keybindings. It
includes support for:

o Threads, spaces, E2EE, and read receipts
o Image previews in terminals that support it (sixels, Kitty, and

iTerm2), or using pixelated blocks for those that don't

o Notifications via terminal bell or desktop environment
o Creating, joining, and leaving rooms
o Sending and accepting room invitations
o Editing, redacting, and reacting to messages
o Custom keybindings
o Multiple profiles

WWW: https://iamb.chat/