[gnome-shell-sass] screenshot-ui: Add IconLabelButton

[Florian Müllner <fmuellner src gnome org>]

commit ff920aacfb1c64f20dd64beb1b1a533e8ddc8049
Author: Ivan Molodetskikh <yalterz gmail com>
Date:   Mon Aug 16 10:29:26 2021 +0300

    screenshot-ui: Add IconLabelButton
    
    A button that has an icon and a subtitle label.
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1954>

 widgets/_screenshot.scss | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/widgets/_screenshot.scss b/widgets/_screenshot.scss
index aa1a11a..5c98fce 100644
--- a/widgets/_screenshot.scss
+++ b/widgets/_screenshot.scss
@@ -1,4 +1,13 @@
 // Screenshot UI
+.icon-label-button-container {
+  spacing: $base_spacing;
+  font-size: $base_font_size - 3pt;
+
+  StIcon {
+    icon-size: 32px;
+  }
+}
+
 .screenshot-ui-panel {
   background-color: $osd_bg_color;
   border-radius: 12px + 21px;