Everywhere: Hoist the Libraries folder to the top-level

Libraries/LibWeb/HTML/HistoryHandlingBehavior.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+namespace Web::HTML {
+
+// https://html.spec.whatwg.org/multipage/browsing-the-web.html#history-handling-behavior
+enum class HistoryHandlingBehavior {
+    Push,
+    Replace,
+};
+
+}