Switch bash to vi mode

nix/home.nix

@@ -625,6 +625,7 @@ in
     };
     initExtra = "set completion-ignore-case On";
     bashrcExtra = ''
+      set -o vi
       export EDITOR="nvim";
       export PS1="\n[\[\e[37m\]\u\[\e[0m\]@\[\e[37;2m\]\h\[\e[0m\]] \[\e[1m\]\w \[\e[0;2m\]J:\[\e[0m\]\j\n\$ ";