fix(lib): appease byte-compiler-sama

Silences some byte-compiler warnings about:

- 'nreverse on constant list' on add-hook! calls.
- inhibit-changing-match-data deprecation warning.
- unescaped quotes in docstring in some doom-*-dir variables.
- Variable non-essential should be quoted (though it isn't referring to
  a variable).
- CONTEXT -> CONTEXTS to match argument name.

lisp/doom-lib.el

@@ -801,7 +801,7 @@ This macro accepts, in order:
               func-forms)))
     `(progn
        ,@defn-forms
-       (dolist (hook (nreverse ',hook-forms))
+       (dolist (hook ',(nreverse hook-forms))
          (dolist (func (list ,@func-forms))
            ,(if remove-p
                 `(remove-hook hook func ,local-p)