tweak(notmuch): bury update buffer instead of killing it

+notmuch/update would create an additional window that outlasts the
update process. Instead, delete the window and bury the buffer, so that
it may be read later.

modules/email/notmuch/autoload.el

@@ -60,18 +60,20 @@
 (defun +notmuch/update ()
   "Sync notmuch emails with server."
   (interactive)
+  (let ((compilation-buffer-name-function (lambda (_) (format "*notmuch update*"))))
    (with-current-buffer (compile (+notmuch-get-sync-command))
      (add-hook
       'compilation-finish-functions
       (lambda (buf status)
         (if (equal status "finished\n")
             (progn
-             (kill-buffer buf)
+              (delete-windows-on buf)
+              (bury-buffer buf)
               (notmuch-refresh-all-buffers)
               (message "Notmuch sync successful"))
           (user-error "Failed to sync notmuch data")))
       nil
-     'local)))
+      'local))))
 
 ;;;###autoload
 (defun +notmuch/search-delete ()