feat(editor): add config for vertico + orderless as a alternative to selectrum

I still prefer selectrum for the time being, but I've written the
config, might as well commit it for potential future use or
experimentation.

modules/editor/siren-orderless.el

@@ -0,0 +1,20 @@
+;;; siren-orderless.el --- jimeh's Emacs Siren: orderless configuration.
+
+;;; Commentary:
+
+;; Basic configuration for orderless.
+
+;;; Code:
+
+(use-package orderless
+  :custom
+  (completion-styles '(orderless))
+  (completion-category-overrides '((file (styles . (partial-completion)))))
+  (orderless-matching-styles '(orderless-literal
+                               orderless-prefixes
+                               orderless-regexp
+                               orderless-initialism
+                               orderless-flex)))
+
+(provide 'siren-orderless)
+;;; siren-orderless.el ends here

modules/editor/siren-vertico.el

@@ -0,0 +1,27 @@
+;;; siren-vertico.el --- jimeh's Emacs Siren: vertico configuration.
+
+;;; Commentary:
+
+;; Basic configuration for vertico.
+
+;;; Code:
+
+(require 'siren-orderless)
+
+(use-package vertico
+  :custom
+  (enable-recursive-minibuffers t)
+  (resize-mini-windows nil)
+  (vertico-count 12)
+  (vertico-cycle t)
+
+  :init
+  (defun siren-crm-indicator (args)
+    (cons (concat "[CRM] " (car args)) (cdr args)))
+
+  :config
+  (vertico-mode +1)
+  (advice-add #'completing-read-multiple :filter-args #'siren-crm-indicator))
+
+(provide 'siren-vertico)
+;;; siren-vertico.el ends here

modules/navigation/siren-consult.el

@@ -6,10 +6,6 @@
 
 ;;; Code:
 
-(require 'siren-prescient)
-(require 'siren-projectile)
-(require 'siren-selectrum)
-
 (use-package consult
   :defer t
   :bind