[nostalgia/core] Rename event handler to update handler

src/nostalgia/core/glfw/core.cpp

@@ -62,7 +62,7 @@ ox::Error run(Context *ctx) noexcept {
 	return OxError(0);
 }
 
-void setEventHandler(Context *ctx, event_handler h) noexcept {
+void setUpdateHandler(Context *ctx, UpdateHandler h) noexcept {
 	const auto id = ctx->windowerData<GlfwImplData>();
 	id->eventHandler = h;
 }