[keel,nostalgia,studio] Fix implicit conversions

src/studio/modlib/include/studio/popup.hpp

@@ -4,14 +4,14 @@
 
 #pragma once
 
+#include <functional>
+
 #include <ox/event/signal.hpp>
 #include <ox/std/string.hpp>
 #include <ox/std/vec.hpp>
 
 #include <turbine/context.hpp>
 
-#include "imguiuitl.hpp"
-
 namespace studio {
 
 
@@ -47,14 +47,7 @@ class Popup {
 			return m_title;
 		}
 
-		void drawWindow(turbine::Context *ctx, bool *open, auto drawContents) {
-			studio::ig::centerNextWindow(ctx);
-			ImGui::SetNextWindowSize(static_cast<ImVec2>(m_size));
-			constexpr auto modalFlags = ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize;
-			if (ImGui::BeginPopupModal(m_title.c_str(), open, modalFlags)) {
-				drawContents();
-			}
-		}
+		void drawWindow(turbine::Context *ctx, bool *open, const std::function<void()> &drawContents);
 
 };