[gnome-shell-sass] theme: Add interactive styling to .events-section-title again

[Florian Müllner <fmuellner src gnome org>]

commit 622b6531d5f9f3c1d0ba277b917af54271034a54
Author: nana-4 <hnmaigo gmail com>
Date:   Sat Jan 25 13:13:20 2020 +0900

    theme: Add interactive styling to .events-section-title again
    
    Since it's an interactive element, interactive styling is still needed.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/2088

 widgets/_calendar.scss | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/widgets/_calendar.scss b/widgets/_calendar.scss
index fa1e75f..e22e706 100644
--- a/widgets/_calendar.scss
+++ b/widgets/_calendar.scss
@@ -64,9 +64,9 @@
 }
 
 .events-section-title {
+  @include notification_bubble($flat: true);
   color: desaturate(darken($fg_color,40%), 10%);
   font-weight: bold;
-  border-radius: 4px;
   padding: .4em;
 }