LibWeb/CSP: Implement the script-src directive

Author: https://github.com/Lubrsi
Commit: 0cff47828d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5328
Reviewed-by: https://github.com/ADKaster ✅

Libraries/LibJS/Runtime/VM.h

@@ -49,6 +49,7 @@ enum class CompilationType {
     DirectEval,
     IndirectEval,
     Function,
+    Timer,
 };
 
 class JS_API VM : public RefCounted<VM> {