[seahorse] ui: Use libhandy list styling

[Niels De Graef <nielsdg src gnome org>]

commit 60504cfa8181cbfec2eb65ad6a9433cccda9efec
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Mon Feb 15 16:35:07 2021 +0100

    ui: Use libhandy list styling

 libseahorse/seahorse.css    | 9 ---------
 src/seahorse-key-manager.ui | 2 +-
 2 files changed, 1 insertion(+), 10 deletions(-)
---
diff --git a/libseahorse/seahorse.css b/libseahorse/seahorse.css
index a6e0563c..e80e048c 100644
--- a/libseahorse/seahorse.css
+++ b/libseahorse/seahorse.css
@@ -17,18 +17,9 @@
 }
 
 .seahorse-item-listbox {
-  border: 1px solid @borders;
   min-width: 400px;
 }
 
-.seahorse-item-listbox > row {
-  border-bottom: 1px groove @borders;
-}
-
-.seahorse-item-listbox > row:last-child {
-  border-bottom: 0;
-}
-
 .seahorse-item-listbox-row {
   margin: 12px;
 }
diff --git a/src/seahorse-key-manager.ui b/src/seahorse-key-manager.ui
index 26acb24b..68e946cb 100644
--- a/src/seahorse-key-manager.ui
+++ b/src/seahorse-key-manager.ui
@@ -497,7 +497,7 @@
                             <property name="activate-on-single-click">False</property>
                             <property name="selection-mode">multiple</property>
                             <style>
-                              <class name="seahorse-item-listbox"/>
+                              <class name="content"/>
                             </style>
                           </object>
                         </child>