Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/CloseWatcher.idl

@@ -0,0 +1,19 @@
+#import <DOM/EventTarget.idl>
+#import <DOM/EventHandler.idl>
+
+// https://html.spec.whatwg.org/multipage/interaction.html#closewatcher
+[Exposed=Window]
+interface CloseWatcher : EventTarget {
+    constructor(optional CloseWatcherOptions options = {});
+
+    undefined requestClose();
+    undefined close();
+    undefined destroy();
+
+    attribute EventHandler oncancel;
+    attribute EventHandler onclose;
+};
+
+dictionary CloseWatcherOptions {
+    AbortSignal signal;
+};