Major refactor & optimization of how modules load their packages

Now that we are loading package autoloads files (as part of the
generated doom-package-autoload-file when running make autoloads), many
:commands properties are redundant. In fact, many def-package! blocks
are redundant.

In some cases, we can do without a config.el file entirely, and can move
into the autoloads file or rely entirely on package autoloads.

Also, many settings have been moved in their module's autoloads files,
which makes them available ASAP; their use no longer depends on module
load order.

This gained me a modest ~10% boost in startup speed.

modules/lang/web/+css.el

@@ -1,10 +1,5 @@
 ;;; lang/web/+css.el -*- lexical-binding: t; -*-
 
-;; css-mode hooks apply to scss and less-css modes
-(add-hook 'css-mode-hook #'rainbow-delimiters-mode)
-(add-hook! (css-mode sass-mode stylus-mode)
-  #'(yas-minor-mode-on flycheck-mode highlight-numbers-mode))
-
 ;; An improved newline+continue comment function
 (setq-hook! css-mode comment-indent-function #'+css/comment-indent-new-line)
 
@@ -13,29 +8,36 @@
     (sp-local-pair "/*" "*/" :post-handlers '(("||\n[i]" "RET") ("| " "SPC")))))
 
 (map! :map* (css-mode-map scss-mode-map less-css-mode-map)
-      :n "M-R" #'+css/web-refresh-browser
-      (:localleader
-        :n "rb" #'+css/toggle-inline-or-block))
+      :localleader
+      :n "rb" #'+css/toggle-inline-or-block)
 
 
 ;;
 ;; Packages
 ;;
 
+;; css-mode hooks apply to scss and less-css modes
+(add-hook 'css-mode-hook #'rainbow-delimiters-mode)
+(add-hook! (css-mode sass-mode stylus-mode)
+  #'(yas-minor-mode-on
+     flycheck-mode
+     highlight-numbers-mode
+     rainbow-mode))
+
+
 (def-package! counsel-css
   :when (featurep! :completion ivy)
-  :commands (counsel-css counsel-css-imenu-setup)
+  :commands counsel-css
   :hook (css-mode . counsel-css-imenu-setup)
   :init
   (map! :map* (css-mode-map scss-mode-map less-css-mode-map)
         :localleader :n ";" #'counsel-css))
 
 
-(def-package! rainbow-mode
-  :hook (css-mode sass-mode))
-
-
-(after! css-mode ; contains both css-mode & scss-mode
+(def-package! css-mode ; built-in
+  :defer t
+  :config
+  ;; contains both css-mode & scss-mode
   (set! :docset 'css-mode "CSS")
   (set! :docset 'scss-mode "Sass")
   (unless EMACS26+
@@ -45,7 +47,7 @@
 
 
 (def-package! sass-mode
-  :commands sass-mode
+  :defer t
   :config
   (set! :docset 'sass-mode "Sass")
   (set! :company-backend 'sass-mode 'company-css)

modules/lang/web/+html.el

@@ -14,7 +14,6 @@
   :mode "wp-content/themes/.+/.+\\.php$"
   :mode "templates/.+\\.php$"
   :config
-  (set! :company-backend 'web-mode '(company-web-html company-yasnippet))
   (setq web-mode-enable-html-entities-fontification t
         web-mode-enable-auto-quoting nil)
 
@@ -91,10 +90,7 @@
         :nv "[T"  #'web-mode-element-parent))
 
 
-(def-package! company-web
-  :when (featurep! :completion company)
-  :after web-mode)
-
-
-;; `pug-mode'
-(set! :company-backend 'pug-mode '(company-yasnippet))
+;;
+(set! :company-backend 'pug-mode 'company-web-jade)
+(set! :company-backend 'web-mode 'company-web-html)
+(set! :company-backend 'slim-mode 'company-web-slim)

modules/lang/web/packages.el

@@ -13,9 +13,9 @@
 (package! haml-mode)
 (package! pug-mode)
 (package! slim-mode)
-(package! web-mode)
-(when (featurep! :completion company)
-  (package! company-web))
+(when (package! web-mode)
+  (when (featurep! :completion company)
+    (package! company-web)))
 
 ;; +css.el
 (package! less-css-mode)