evil: make minibuffer evilification optional

[Atemu]

I confirm that...

• I have searched the issue tracker, documentation, FAQ, Discourse, and Google, in case this issue has already been reported/resolved.

• I have read "How to Debug Issues", and will use it to provide as much information about this issue as possible.

• The issue can be reproduced on the latest available commit of Doom.

• The issue can be reproduced on a stable release of Emacs, such as 27, 28, or 29. (Unstable versions end in .50, .60, or .9x)

Expected behavior

I do not want my minibuffer evilifed but I do want +everywhere for major modes. There should be an option to leave the default key binds unmodified (e.g. +minibuffer).

I generally only want major mode evilification and leader keys.

Current behavior

Upstream evil-collection has evil-collection-setup-minibuffer for configuring that aspect but doom-emacs overrides it unconditionally:

doomemacs/modules/config/default/+evil-bindings.el

Lines 7 to 34 in 5f5a163

	(map! :map (evil-ex-completion-map evil-ex-search-keymap)
	"C-a" #'evil-beginning-of-line
	"C-b" #'evil-backward-char
	"C-f" #'evil-forward-char
	:gi "C-j" #'next-complete-history-element
	:gi "C-k" #'previous-complete-history-element)
	(define-key! :keymaps +default-minibuffer-maps
	[escape] #'abort-recursive-edit
	"C-a" #'move-beginning-of-line
	"C-r" #'evil-paste-from-register
	"C-u" #'evil-delete-back-to-indentation
	"C-v" #'yank
	"C-w" #'doom/delete-backward-word
	"C-z" (cmd! (ignore-errors (call-interactively #'undo))))
	(define-key! :keymaps +default-minibuffer-maps
	"C-j" #'next-line
	"C-k" #'previous-line
	"C-S-j" #'scroll-up-command
	"C-S-k" #'scroll-down-command)
	;; For folks with `evil-collection-setup-minibuffer' enabled
	(define-key! :states 'insert :keymaps +default-minibuffer-maps
	"C-j" #'next-line
	"C-k" #'previous-line)
	(define-key! read-expression-map
	"C-j" #'next-line-or-history-element
	"C-k" #'previous-line-or-history-element))

Doom should either respect the upstream variable or have its own variable.

Related issue:

#6325

Steps to reproduce

1. Open Emacs
2. Want evil major modes and leader keys but default keybinds everywhere else
3. Find no option to configure it

System Information

https://pastebin.com/z6czCYHp