Changelog crash fix (macOS) (#1935)

On macOS, trying to display a dialog before showing the main window
(like when starting minimized) leads to a crash. The dialog will now
show before the main window is opened, preventing this issue.

src/widgets/Window.hpp

@@ -28,7 +28,6 @@ public:
     pajlada::Signals::NoArgSignal closed;
 
 protected:
-    void showEvent(QShowEvent *) override;
     void closeEvent(QCloseEvent *event) override;
     bool event(QEvent *event) override;