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/CSS/CSSKeyframeRule.idl

@@ -0,0 +1,9 @@
+#import <CSS/CSSRule.idl>
+#import <CSS/CSSStyleDeclaration.idl>
+
+// https://drafts.csswg.org/css-animations-1/#interface-csskeyframerule-idl
+[Exposed=Window]
+interface CSSKeyframeRule : CSSRule {
+    attribute CSSOMString keyText;
+    [SameObject, PutForwards=cssText] readonly attribute CSSStyleDeclaration style;
+};