[geary/wip/730682-refine-convo-list] Add "view" CSS class to conversation list's frame to match the viewer.

[Michael Gratton <mjog src gnome org>]

commit a050de9072c0dfba65c3b4ac0d83bc4b8d63b0b6
Author: Michael James Gratton <mike vee net>
Date:   Tue Dec 5 11:10:19 2017 +1100

    Add "view" CSS class to conversation list's frame to match the viewer.

 ui/main-window.ui |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/ui/main-window.ui b/ui/main-window.ui
index 74b0473..a7ecc85 100644
--- a/ui/main-window.ui
+++ b/ui/main-window.ui
@@ -84,6 +84,7 @@
                             </child>
                             <style>
                               <class name="geary-conversation-frame"/>
+                              <class name="view"/>
                             </style>
                           </object>
                           <packing>