chore(config): clean up and reorganize configuration files

dot_config/zsh/keybinds.zsh

@@ -16,7 +16,7 @@ _zle-run() {
     $cmd </dev/tty
     zle reset-prompt
 }
-for _cmd in purple clip-last omp-session yy lazygit; do
+for _cmd in purple clip-last omp-session omp yy lazygit; do
     zle -N "run-$_cmd" _zle-run
 done
 unset _cmd
@@ -85,6 +85,8 @@ bindkey '^P' pj-inline
 # ctrl-a: omp-session resumes or starts omp for the repo; after a cancelled
 # omp-sessions picker it moves the cursor back up itself.
 bindkey '^A' run-omp-session
+# ctrl-n: always a new omp session.
+bindkey '^N' run-omp
 # ctrl-f: yazi; yy cd's to yazi's exit dir on quit.
 bindkey '^F' run-yy
 bindkey '^G' run-lazygit