[gnome-screenshot] dialog: Enable activates-default on the entry

[Alexander Mikhaylenko <alexm src gnome org>]

commit f70127bb7c7c1f935d584be933002bf2fdc94c30
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Wed Sep 16 23:58:18 2020 +0500

    dialog: Enable activates-default on the entry
    
    Fixes https://gitlab.gnome.org/GNOME/gnome-screenshot/-/issues/118

 data/ui/screenshot-dialog.ui | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/data/ui/screenshot-dialog.ui b/data/ui/screenshot-dialog.ui
index 1791aa9..16648d7 100644
--- a/data/ui/screenshot-dialog.ui
+++ b/data/ui/screenshot-dialog.ui
@@ -97,6 +97,7 @@
                   <object class="GtkEntry" id="filename_entry">
                     <property name="visible">True</property>
                     <property name="width_chars">35</property>
+                    <property name="activates-default">True</property>
                   </object>
                   <packing>
                     <property name="left_attach">1</property>