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/HTMLDialogElement.idl

@@ -0,0 +1,15 @@
+#import <HTML/HTMLElement.idl>
+
+// https://html.spec.whatwg.org/multipage/semantics.html#htmldialogelement
+[Exposed=Window]
+interface HTMLDialogElement : HTMLElement {
+
+    [HTMLConstructor] constructor();
+
+    [CEReactions, Reflect] attribute boolean open;
+    attribute DOMString returnValue;
+    [CEReactions] undefined show();
+    [CEReactions] undefined showModal();
+    [CEReactions] undefined close(optional DOMString returnValue);
+
+};