fix(gnzh): Don't show .local for local hostnames in theme

Fixes #10871

themes/gnzh.zsh-theme

@@ -21,7 +21,7 @@ fi
 if [[ -n "$SSH_CLIENT"  ||  -n "$SSH2_CLIENT" ]]; then
   PR_HOST='%F{red}%M%f' # SSH
 else
-  PR_HOST='%F{green}%M%f' # no SSH
+  PR_HOST='%F{green}%m%f' # no SSH
 fi