LibWeb: Enable EXPLICIT_SYMBOL_EXPORT

Author: https://github.com/ayeteadoe
Commit: 3df8e00d91
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5229
Reviewed-by: https://github.com/ADKaster ✅

Libraries/LibWeb/Fetch/Infrastructure/FetchController.h

@@ -13,6 +13,7 @@
 #include <LibJS/Forward.h>
 #include <LibJS/Heap/Cell.h>
 #include <LibJS/Runtime/VM.h>
+#include <LibWeb/Export.h>
 #include <LibWeb/Fetch/Infrastructure/FetchTimingInfo.h>
 #include <LibWeb/Forward.h>
 #include <LibWeb/HTML/EventLoop/Task.h>
@@ -21,7 +22,7 @@
 namespace Web::Fetch::Infrastructure {
 
 // https://fetch.spec.whatwg.org/#fetch-controller
-class FetchController : public JS::Cell {
+class WEB_API FetchController : public JS::Cell {
     GC_CELL(FetchController, JS::Cell);
     GC_DECLARE_ALLOCATOR(FetchController);