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/CSSKeyframesRule.idl

@@ -0,0 +1,15 @@
+#import <CSS/CSSRule.idl>
+#import <CSS/CSSKeyframeRule.idl>
+
+// https://drafts.csswg.org/css-animations-1/#interface-csskeyframesrule
+[Exposed=Window]
+interface CSSKeyframesRule : CSSRule {
+    attribute CSSOMString name;
+    readonly attribute CSSRuleList cssRules;
+    readonly attribute unsigned long length;
+
+    getter CSSKeyframeRule (unsigned long index);
+    [FIXME] undefined appendRule(CSSOMString rule);
+    [FIXME] undefined deleteRule(CSSOMString select);
+    [FIXME] CSSKeyframeRule? findRule(CSSOMString select);
+};