Major refactor: use-package-always-defer = nil & use :hook

Possibly breaking change: packages are no longer deferred by default.

Addresses #286

modules/ui/hl-todo/config.el

@@ -1,8 +1,7 @@
 ;;; ui/hl-todo/packages.el -*- lexical-binding: t; -*-
 
 (def-package! hl-todo
-  :commands hl-todo-mode
-  :init (add-hook 'prog-mode-hook #'hl-todo-mode)
+  :hook (prog-mode . hl-todo-mode)
   :config
   (setq hl-todo-keyword-faces
         `(("TODO"  . ,(face-foreground 'warning))