Use superior evil-numbers fork

And rebind its keys from C-a/C-S-a to g= and g-. This is because the old
narrow/widen commands aren't nearly as useful (and have a number of
alternative keybinds).

As much as I'd like to us C-a/C-x (as it is in Vim), C-x is an essential
keybind for Emacs.

Also, in visual mode, each number will be affected incrementally (ala g
C-a and g C-x in vim).

modules/editor/evil/config.el

@@ -249,10 +249,6 @@ line with a linewise comment.")
   (add-hook 'doom-escape-hook #'+evil|escape-exchange))
 
 
-(def-package! evil-numbers
-  :commands (evil-numbers/inc-at-pt evil-numbers/dec-at-pt))
-
-
 (def-package! evil-matchit
   :commands (evilmi-jump-items global-evil-matchit-mode
              evilmi-outer-text-object evilmi-inner-text-object)

modules/editor/evil/packages.el

@@ -10,7 +10,7 @@
 (package! evil-exchange)
 (package! evil-indent-plus)
 (package! evil-matchit)
-(package! evil-numbers)
+(package! evil-numbers :recipe (:fetcher github :repo "janpath/evil-numbers"))
 (package! evil-textobj-anyblock)
 (package! evil-snipe)
 (package! evil-surround)