[gnome-builder/wip/gtk4-port] plugins/flatpak: more dialog fixes

[Christian Hergert <chergert src gnome org>]

commit 6d9ef3be49f5d25da05f280172a2eb97ff901efb
Author: Christian Hergert <chergert redhat com>
Date:   Fri May 13 22:18:06 2022 -0700

    plugins/flatpak: more dialog fixes

 src/plugins/flatpak/gbp-flatpak-install-dialog.ui | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)
---
diff --git a/src/plugins/flatpak/gbp-flatpak-install-dialog.ui 
b/src/plugins/flatpak/gbp-flatpak-install-dialog.ui
index 8510d4565..53dd99e58 100644
--- a/src/plugins/flatpak/gbp-flatpak-install-dialog.ui
+++ b/src/plugins/flatpak/gbp-flatpak-install-dialog.ui
@@ -13,13 +13,9 @@
   </object>
   <template class="GbpFlatpakInstallDialog" parent="GtkDialog">
     <property name="modal">True</property>
-    <child internal-child="vbox">
+    <child internal-child="content_area">
       <object class="GtkBox">
         <property name="orientation">vertical</property>
-        <child internal-child="action_area">
-          <object class="GtkButtonBox">
-          </object>
-        </child>
         <child>
           <object class="GtkBox" id="content">
             <property name="visible">True</property>
@@ -45,7 +41,6 @@
                 <property name="visible">True</property>
                 <property name="margin_top">12</property>
                 <property name="vexpand">True</property>
-                <property name="shadow_type">in</property>
                 <property name="propagate_natural_width">True</property>
                 <property name="propagate_natural_height">True</property>
                 <child>