💥 Rename def-package! -> use-package!

Calling this pivotal macro "def-package!" has frequently been a source
of confusion. It is a thin wrapper around use-package, and it should be
obvious that it is so. For this reason, and to match the naming
convention used with other convenience macros/wrappers, it is now
use-package!.

Also changes def-package-hook! -> use-package-hook!

The old macros are now marked obsolete and will be removed when straight
integration is merged.

modules/lang/web/+css.el

@@ -50,7 +50,7 @@
   (add-hook! (css-mode sass-mode less-css-mode) #'lsp!))
 
 
-(def-package! counsel-css
+(use-package! counsel-css
   :when (featurep! :completion ivy)
   :commands counsel-css
   :hook (css-mode . counsel-css-imenu-setup)
@@ -59,7 +59,7 @@
         :localleader ";" #'counsel-css))
 
 
-(def-package! helm-css-scss
+(use-package! helm-css-scss
   :when (featurep! :completion helm)
   :defer t
   :init

modules/lang/web/+html.el

@@ -1,6 +1,6 @@
 ;;; lang/web/+html.el -*- lexical-binding: t; -*-
 
-(def-package! web-mode
+(use-package! web-mode
   :mode "\\.p?html?$"
   :mode "\\.\\(?:tpl\\|blade\\)\\(\\.php\\)?$"
   :mode "\\.erb$"

modules/lang/web/config.el

@@ -4,7 +4,7 @@
 (load! "+css")
 
 
-(def-package! emmet-mode
+(use-package! emmet-mode
   :preface (defvar emmet-mode-keymap (make-sparse-keymap))
   :hook (css-mode web-mode html-mode haml-mode nxml-mode rjsx-mode reason-mode)
   :config