[latexila] Search: replace all button: center content vertically

[Sébastien Wilmet <swilmet src gnome org>]

commit d8e60d25299fe95bbde5ca5379dcb956af97ef65
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Aug 16 07:14:18 2017 +0200

    Search: replace all button: center content vertically
    
    The content was at the top of the button.

 src/search.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/search.vala b/src/search.vala
index bd50801..89ce04f 100644
--- a/src/search.vala
+++ b/src/search.vala
@@ -186,6 +186,7 @@ public class SearchAndReplace : GLib.Object
         Grid replace_all_grid = new Grid ();
         replace_all_grid.set_orientation (Orientation.HORIZONTAL);
         replace_all_grid.set_column_spacing (8);
+        replace_all_grid.set_valign (Align.CENTER);
 
         Image image = new Image.from_icon_name ("edit-find-replace", IconSize.MENU);
         replace_all_grid.add (image);