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/IntersectionObserver/IntersectionObserver.idl

@@ -0,0 +1,29 @@
+#import <DOM/Document.idl>
+#import <DOM/Element.idl>
+#import <DOM/Node.idl>
+#import <IntersectionObserver/IntersectionObserverEntry.idl>
+
+// https://w3c.github.io/IntersectionObserver/#intersection-observer-callback
+callback IntersectionObserverCallback = undefined (sequence<IntersectionObserverEntry> entries, IntersectionObserver observer);
+
+// https://w3c.github.io/IntersectionObserver/#intersection-observer-interface
+[Exposed=(Window)]
+interface IntersectionObserver {
+    constructor(IntersectionObserverCallback callback, optional IntersectionObserverInit options = {});
+    readonly attribute (Element or Document)? root;
+    [FIXME] readonly attribute DOMString rootMargin;
+    // FIXME: `sequence<double>` should be `FrozenArray<double>`
+    readonly attribute sequence<double> thresholds;
+    undefined observe(Element target);
+    undefined unobserve(Element target);
+    undefined disconnect();
+    sequence<IntersectionObserverEntry> takeRecords();
+};
+
+// https://w3c.github.io/IntersectionObserver/#intersection-observer-init
+dictionary IntersectionObserverInit {
+    (Element or Document)? root = null;
+    DOMString rootMargin = "0px";
+    // FIXME: DOMString scrollMargin = "0px";
+    (double or sequence<double>) threshold = 0;
+};