feat: add support for Zellij

[dynamotn]

I'm considering about adding to the same wiki page that shows wezterm instructions. Zellij has already default keybindings with <Alt> key, but not support fully seamlessly navigate.(https://github.com/zellij-org/zellij/issues/967)

[hiasr]

@numToStr Is there anything holding this PR back? With vim-zellij-navigator this would make the Zellij support complete!

[clorl]

Would love for this to be merged