[gnome-sound-recorder] css: fix circular btn outline radius

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit b24a1cbc67ad30b01af5d0457b1fc64b6309ad53
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Wed Sep 9 06:55:57 2020 +0200

    css: fix circular btn outline radius

 data/application.css | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/application.css b/data/application.css
index 721cfa3..87b7fe8 100644
--- a/data/application.css
+++ b/data/application.css
@@ -6,6 +6,7 @@
 button.rounded-button { 
   padding: 4px;
   border-radius: 9999px;
+       -gtk-outline-radius: 9999px;
   min-width: 24px;
   min-height: 24px;
 }