finished wishlist

data/resources/ui/wishlist.blp

@@ -0,0 +1,24 @@
+using Gtk 4.0;
+using Adw 1;
+
+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';
+        styles [
+          'flat',
+          'circular',
+          'suggested-action'
+        ]
+      };
+      separate-rows: true;
+      title: _("Wishlist");
+      styles [
+        "list-title"
+      ]
+    }
+  }
+}