opening links in private browsing mode (windows)

tested on firefox, chrome and internet explorer

src/util/IncognitoBrowser.hpp

@@ -2,13 +2,9 @@
 
 #include <QtGlobal>
 
-#ifdef Q_OS_WIN
-
-// only supported on windows right now
-#    define INCOGNITO_LINKS_SUPPORTED
-
 namespace chatterino {
-void openLinkIncognito(const QString &link);
-}
 
-#endif
+bool supportsIncognitoLinks();
+void openLinkIncognito(const QString &link);
+
+}  // namespace chatterino