Renamed tmux.yaml to tmux.nonimplemented so that it's not mistaken, and removed an accidental edit in the default.yaml.
Corrections according to the discussion of the pull request, namely separating this idea out into a new yaml entirely called tmux-overview., and creating a tmux.yaml with just the new tmux bindings.
Created a 1:1 Tmux.yaml for Zellij, using the Lock mode, as Tmux doesn't have a lock mode.