chore: save shared modman info in context

src/ModMan/Context/ModManContext.cpp

@@ -0,0 +1,7 @@
+#include "ModManContext.h"
+
+ModManContext& ModManContext::Get()
+{
+    static ModManContext context;
+    return context;
+}

src/ModMan/Context/ModManContext.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include "Web/WebViewLib.h"
+
+#include <memory>
+
+class ModManContext
+{
+public:
+    static ModManContext& Get();
+
+    std::unique_ptr<webview::webview> m_main_webview;
+    std::unique_ptr<webview::webview> m_dev_tools_webview;
+};