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

[Florian Müllner <fmuellner src gnome org>]

commit 40f7d615248cf6fea638f76695abac28d7d84ce6
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

 data/theme/gnome-shell-sass/widgets/_calendar.scss | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/theme/gnome-shell-sass/widgets/_calendar.scss 
b/data/theme/gnome-shell-sass/widgets/_calendar.scss
index fa1e75fe81..e22e706188 100644
--- a/data/theme/gnome-shell-sass/widgets/_calendar.scss
+++ b/data/theme/gnome-shell-sass/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;
 }