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/XHR/ProgressEvent.idl

@@ -0,0 +1,17 @@
+#import <DOM/Event.idl>
+
+// https://xhr.spec.whatwg.org/#interface-progressevent
+[Exposed=(Window,Worker)]
+interface ProgressEvent : Event {
+    constructor(DOMString type, optional ProgressEventInit eventInitDict = {});
+
+    readonly attribute boolean lengthComputable;
+    readonly attribute unsigned long long loaded;
+    readonly attribute unsigned long long total;
+};
+
+dictionary ProgressEventInit : EventInit {
+    boolean lengthComputable = false;
+    unsigned long long loaded = 0;
+    unsigned long long total = 0;
+};