* revert auto tmux attach logic for only if TMUX is empty and if SSH_CONNECTION is active

* use tmux 3+ config by default
* fix default EDITOR set to vim
* remove unnecessary PATH definition (previously used for correct environment for proxmox pct enter command)

.shell-env

@@ -3,7 +3,7 @@
 ##
 ## Editors
 ##
-export EDITOR=nvim
+export EDITOR=vim
 export TERMINAL=alacritty
 export GIT_EDITOR="$EDITOR"
 export USE_EDITOR="$EDITOR"
@@ -21,8 +21,3 @@ if [ -f "$HOME/.shell-env.local" ]; then
 fi
 
 umask 022
-
-##
-## Correct PATH for tmux enter
-##
-PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin