[geary/geary-0.13] Add margin_bottom padding to composer_toolbar

[Michael Gratton <mjog src gnome org>]

commit c693ef079657a76d144265e16f214c390f00e56a
Author: Joel Duncan <joel slethen io>
Date:   Mon Feb 18 00:16:22 2019 +0000

    Add margin_bottom padding to composer_toolbar

 ui/composer-widget.ui | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/ui/composer-widget.ui b/ui/composer-widget.ui
index 6b9eb834..95e1ef46 100644
--- a/ui/composer-widget.ui
+++ b/ui/composer-widget.ui
@@ -338,6 +338,7 @@
                 <property name="can_focus">False</property>
                 <property name="margin_start">6</property>
                 <property name="margin_end">6</property>
+                <property name="margin_bottom">4</property>
                 <property name="spacing">6</property>
                 <child>
                   <object class="GtkBox" id="command_buttons">