Add Align-cljlet function to Clojurescript mode

[CestDiego]

Derived modes don't inherit evil keybindings from their parents, this is
interesting to note, also it would be so great if we could have a
set-leader-keys macro that could take a list of modes as well.

[StreakyCobra]

Isn't it better to dolist over the keymap instead of having two definition?

Also by convention we use (progn … if there is more than one expression, what is the case with your current code. If you dolist it, it's unnecssary though :-)

[CestDiego]

I didn't know we used (progn) if its more than one expression D: I've been not using that since use-package doesn't need it anymore. :(

[StreakyCobra]

The boss decided it there: #4050 (comment) 😄

[nixmaniack]

@StreakyCobra That should definitely be somewhere in the documentation for reference. 😄

[StreakyCobra]

Quoting #4050 (comment):

@syl20bnr: I'll add this to the conventions.

😇

[CestDiego]

it does look ugly though T_T I guess he has a point though....

[CestDiego]

Updated to dolist :)

[StreakyCobra]

👍

[syl20bnr]

Hehe I'll add this soon to the conventions :-)
Thank you !
Cherry-picked into develop branch, you can safely delete your branch.