minor fixes, API integration

data/resources/ui/wishlist.blp

@@ -5,20 +5,25 @@ template $WishlistPage: Gtk.Box {
   orientation: vertical;
   baseline-position: center;
   Adw.Clamp {
-    Adw.PreferencesGroup wishlist {
-      header-suffix: Button btn_wishlist_add {
-        icon-name: 'plus-circle-outline-symbolic';
+    ScrolledWindow {
+      hexpand: true;
+      vexpand: true;
+      Adw.PreferencesGroup wishlist {
+        margin-end:20;
+        header-suffix: Button btn_wishlist_add {
+          icon-name: 'plus-circle-outline-symbolic';
+          styles [
+            'flat',
+            'circular',
+            'suggested-action'
+          ]
+        };
+        separate-rows: true;
+        title: _("Wishlist");
         styles [
-          'flat',
-          'circular',
-          'suggested-action'
+          "list-title"
         ]
-      };
-      separate-rows: true;
-      title: _("Wishlist");
-      styles [
-        "list-title"
-      ]
+      }
     }
   }
 }