style(config): replace ctrl‑e binding with yazi and remove nvim shortcut

dot_config/zsh/keybinds.zsh

@@ -14,12 +14,13 @@ _zle-run() {
     $cmd </dev/tty
     zle reset-prompt
 }
-for _cmd in nvim purple clip-last gho pj omp yy lazygit; do
+for _cmd in purple clip-last gho pj omp yy lazygit; do
     zle -N "run-$_cmd" _zle-run
 done
 unset _cmd
 
-bindkey '^E' run-nvim
+# ctrl-e: yazi, same as ctrl-f (cd's to yazi's exit dir on quit).
+bindkey '^E' run-yy
 bindkey '^B' run-purple
 bindkey '^Y' run-clip-last
 bindkey '^O' run-gho