[geary/wip/765516-gtk-widget-conversation-viewer] Fix full-pane composer not taking upthe full window.

[Michael Gratton <mjog src gnome org>]

commit 0183c47848558982e5422f0161715b55c93e911b
Author: Michael James Gratton <mike vee net>
Date:   Mon Aug 15 12:16:58 2016 +1000

    Fix full-pane composer not taking upthe full window.

 ui/composer.glade |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/ui/composer.glade b/ui/composer.glade
index d332b01..bdaced2 100644
--- a/ui/composer.glade
+++ b/ui/composer.glade
@@ -251,6 +251,8 @@
   <object class="GtkBox" id="composer">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
+    <property name="hexpand">True</property>
+    <property name="vexpand">True</property>
     <property name="orientation">vertical</property>
     <property name="spacing">2</property>
     <child>