LibWeb: Stub MediaCapabilities IDL interface

Author: https://github.com/jamierocks
Commit: 4c5a176354
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/1283
Reviewed-by: https://github.com/tcl3 ✅

Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp

@@ -4197,6 +4197,7 @@ static void generate_using_namespace_definitions(SourceGenerator& generator)
     using namespace Web::IndexedDB;
     using namespace Web::Internals;
     using namespace Web::IntersectionObserver;
+    using namespace Web::MediaCapabilitiesAPI;
     using namespace Web::NavigationTiming;
     using namespace Web::PerformanceTimeline;
     using namespace Web::RequestIdleCallback;