tools/magit: update vc on +magit/quit

Instead of magit-post-refresh-hook, which fires much more frequently.
Updating vc across all buffers is expensive, so let's only do it when we
quit magit.

Warning: this may make quitting magit expensive when you have many
buffers open. Still searching for a better solution.

modules/tools/magit/autoload.el

@@ -50,9 +50,16 @@
 
 ;;;###autoload
 (defun +magit/quit (&optional _kill-buffer)
-  "Clean up magit buffers after quitting `magit-status'."
+  "Clean up magit buffers after quitting `magit-status' and refresh version
+control in buffers."
   (interactive)
-  (mapc #'+magit--kill-buffer (magit-mode-get-buffers)))
+  (mapc #'+magit--kill-buffer (magit-mode-get-buffers))
+  (dolist (buffer (buffer-list))
+    (with-current-buffer buffer
+      (when (fboundp 'vc-refresh-state)
+        (vc-refresh-state))
+      (when (fboundp '+version-control|update-git-gutter)
+        (+version-control|update-git-gutter)))))
 
 (defun +magit--kill-buffer (buf)
   "TODO"

modules/tools/magit/config.el

@@ -47,14 +47,7 @@ available.")
 
   ;; Don't replace the leader key
   ;; FIXME remove me when general.el is integrated
-  (define-key magit-diff-mode-map (kbd doom-leader-key) nil)
+  (define-key magit-diff-mode-map (kbd doom-leader-key) nil))
-
-  (defun +magit|update-vc ()
-    "Update vc in all verson-controlled buffers when magit refreshes."
-    (dolist (buf (buffer-list))
-      (with-current-buffer buf
-        (vc-refresh-state))))
-  (add-hook 'magit-post-refresh-hook #'+magit|update-vc))
 
 
 (def-package! magit-todos