LibJS: Enable EXPLICIT_SYMBOL_EXPORT

Author: https://github.com/ayeteadoe
Commit: c14173f651
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5215
Reviewed-by: https://github.com/ADKaster ✅

Libraries/LibJS/SourceCode.h

@@ -13,7 +13,7 @@
 
 namespace JS {
 
-class SourceCode : public RefCounted<SourceCode> {
+class JS_API SourceCode : public RefCounted<SourceCode> {
 public:
     static NonnullRefPtr<SourceCode const> create(String filename, String code);