Allow using / in session name

[noverby]

I'm currently trying to migrate from tmux to zellij, but I have noticed that zellij does not support / in the session name like tmux.

My use case is to apply the current working directory as the session name.

[karlovsek]

If nothing else, I think that this could be a problem from #2801

The default session cache location for linux machines: ~/.cache/zellij/<ZELLIJ_VERSION>/session_info/<SESSION_NAME>/session-layout.kdl

So, <SESSION_NAME> is used as folder name.

Apparently, there are also some issues with the length of the session name #2591, which I guess can easily be exceeded by working directory paths.

Or maybe you could replace all / with \, and limit to last, say 100 chars?
For example

alias zwd="zellij --session \$(echo \$(pwd) | sed 's/\\//\\\\/g') | tail -c100"

[sommerper]

This was also mentioned here: #2171 but I would say it's just a minor inconvenience...

[noverby]

I know how to work around this, but it still is a feature that is supported in tmux, so I will keep the issue open.