zsh/zshenv: priotize $XDG_CONFIG_HOME/env over ~/.config/env
zsh/zshenv: priotize $XDG_CONFIG_HOME/env over ~/.config/env

Again, this allows sourcing existing configurations when starting a shell from
a different home.

zmwangx/dotfiles,zmwangx/dotfiles,zmwangx/dotfiles,zmwangx/dotfiles,zmwangx/dotfiles