💥 Remove :feature category

:feature was a "catch-all" category. Many of its modules fit better in
other categories, so they've been moved:

- feature/debugger -> tools/debugger
- feature/evil -> editor/evil
- feature/eval -> tools/eval
- feature/lookup -> tools/lookup
- feature/snippets -> editor/snippets
- feature/file-templates -> editor/file-templates
- feature/workspaces -> ui/workspaces

More potential changes in the future:

- A new :term category for terminal emulation modules (eshell, term and
  vterm).
- A new :os category for modules dedicated to os-specific functionality.
  The :tools macos module would fit here, but so would modules for nixos
  and arch.
- A new :services category for web-service integration, like wakatime,
  twitter, elfeed, gist and pastebin services.

modules/lang/javascript/config.el

@@ -179,7 +179,7 @@
 
 
 (def-package! xref-js2
-  :when (featurep! :feature lookup)
+  :when (featurep! :tools lookup)
   :after (:or js2-mode rjsx-mode)
   :config
   (set-lookup-handlers! '(js2-mode rjsx-mode)
@@ -189,7 +189,7 @@
 (def-package! js2-refactor
   :hook ((js2-mode rjsx-mode) . js2-refactor-mode)
   :config
-  (when (featurep! :feature evil +everywhere)
+  (when (featurep! :editor evil +everywhere)
     (let ((js2-refactor-mode-map (evil-get-auxiliary-keymap js2-refactor-mode-map 'normal t t)))
       (js2r-add-keybindings-with-prefix (format "%s r" doom-localleader-key)))))