💥 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/org/+capture.el

@@ -86,7 +86,7 @@ underlying, modified buffer. This fixes that."
                 header-line-format)))
 (add-hook 'org-capture-mode-hook #'+org|show-target-in-capture-header)
 
-(when (featurep! :feature evil)
+(when (featurep! :editor evil)
   (add-hook 'org-capture-mode-hook #'evil-insert-state))
 
 (when (featurep! :ui doom-dashboard)

modules/lang/org/config.el

@@ -27,7 +27,7 @@
 (advice-add #'toc-org-insert-toc :before #'+org*unfold-toc)
 
 (def-package! evil-org
-  :when (featurep! :feature evil +everywhere)
+  :when (featurep! :editor evil +everywhere)
   :hook (org-mode . evil-org-mode)
   :init
   (defvar evil-org-key-theme '(navigation insert textobjects))

modules/lang/org/packages.el

@@ -16,7 +16,7 @@
 (package! org-yt :recipe (:fetcher github :repo "TobiasZawada/org-yt"))
 (package! toc-org)
 
-(when (featurep! :feature evil)
+(when (featurep! :editor evil)
   (package! evil-org))
 
 (when (featurep! :tools pdf)