Fix package

[syohex]

• use cl-lib function instead of cl.el. Because cl.el is deprecated
• Add missing quoate
• Replace split-window-right-and-focus with standard functions
  • I'm not sure is it spacemacs function ?
  • https://github.com/syl20bnr/spacemacs/blob/77ba076f697d270b011586944004ce8dfb6f61a4/layers/%2Bspacemacs/spacemacs-defaults/keybindings.el#L627-L634

[rayw000]

I'm not sure is it spacemacs function ?

Oops! You're right. Thank you!