Add light ⬇️ download icon

Signed-off-by: Robbert Gurdeep Singh <git@beardhatcode.be>
Signed-off-by: szaimen <szaimen@e.mail.de>
Signed-off-by: nextcloud-command <nextcloud-command@users.noreply.github.com>

Author: beardhatcode

src/views/Viewer.vue

@@ -860,6 +860,10 @@ export default {
 	height: 100% !important;
 }
 
+#viewer .action-item--single.icon-download {
+	background-image: var(--icon-download-000);
+}
+
 // put autocomplete over full sidebar
 // TODO: remove when new sharing sidebar (18)
 // is the min-version of viewer