chore(users): grfn -> aspen

Change-Id: I6c6847fac56f0a9a1a2209792e00a3aec5e672b9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10809
Autosubmit: aspen <root@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>

users/aspen/emacs.d/slack.el

@@ -0,0 +1,24 @@
+;;; -*- lexical-binding: t; -*-
+
+(after! slack
+  (set-face-foreground 'slack-message-output-header +solarized-s-base01)
+  (set-face-attribute 'slack-message-output-header nil :underline nil)
+  (set-face-attribute 'slack-message-output-text nil :height 1.0))
+
+(require 'slack)
+(setq slack-buffer-emojify 't
+      slack-prefer-current-team 't
+      slack-thread-also-send-to-room nil)
+
+(set-popup-rule! "^\\*Slack"
+  :quit nil
+  :select t
+  :side 'bottom
+  :ttl nil
+  :size 0.5)
+
+(add-hook #'slack-message-buffer-mode-hook
+          (lambda () (toggle-truncate-lines -1)))
+
+(map! (:map slack-message-buffer-mode-map
+       :n "q" #'delete-window))