style: Fix missing border radius on only-child notification buttons

- fixes #6157

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2562>

diff --git a/data/theme/gnome-shell-sass/_common.scss b/data/theme/gnome-shell-sass/_common.scss
index 0587b1579b979da57fbf1e89aa54fee4506faa0c..79c96001f21fe86bcaefebe2dcd758dcf19868b0 100644 (file)
--- a/data/theme/gnome-shell-sass/_common.scss
+++ b/data/theme/gnome-shell-sass/_common.scss
@@ -160,7 +160,7 @@ stage {
   }
 
   &:first-child:last-child {
-    border-radius: 0 0 $modal_radius;
+    border-radius: 0 0 $modal_radius $modal_radius;
     margin-left: 0 !important;
     margin-right: 0 !important;
   }