[nostalgia,studio] Make module handling consistent

src/studio/applib/include/studioapp/studioapp.hpp

@@ -6,12 +6,16 @@
 
 #include <ox/std/string.hpp>
 
+#include <studio/module.hpp>
+
 namespace studio {
 
+void registerModule(const studio::Module*) noexcept;
+
 int main(
 		const char *appName,
 		ox::String projectDataDir,
-		[[maybe_unused]] int argc,
-		[[maybe_unused]] const char **argv);
+		int argc,
+		const char **argv);
 
 }