Add an "Open in browser" option to whisper split (#1828)

src/widgets/splits/Split.hpp

@@ -127,6 +127,7 @@ public slots:
     void popup();
     void clear();
     void openInBrowser();
+    void openWhispersInBrowser();
     void openBrowserPlayer();
     void openInStreamlink();
     void openWithCustomScheme();