hostname and hostname-short

[taflaj]

In my work environment, I have tmux running on multiple instances, such as servers, VMs, containers, etc. I'm using set -g @dracula-show-left-icon hostname, along with custom colors, so I can have a quick visual on which instance I'm currently on. The problem is that the full hostname, at times, can be extra long, thus taking valuable space. To solve this, I've added a new option, namely shortname, that only displays the short hostname (up until the first .).

I've created a pull request for this, in hopes it's approved.

Otherwise, it's an honor to be part of this community.

[luxonauta]

dracula/tmux#240 Merged already.