feat: improve completions, rename & extract rc/src to dfe/dfs

autoload_completions.zsh

@@ -3,6 +3,10 @@ autoload_completions() {
   autoload bashcompinit
   bashcompinit
   autoload -Uz compinit
+  # autocompletions
+  for i in $(ls $DOTFILES/completions); do
+    autoload $i
+  done
   compinit
 }