Always disable cursor if Gyro is set to Mouse mode and the menu is not open (#736)

Co-authored-by: MelonSpeedruns <melonspeedruns@stratobox.net>

src/dusk/ui/prelaunch.cpp

@@ -687,6 +687,8 @@ Prelaunch::Prelaunch() : Document(kDocumentSource), mRoot(mDocument->GetElementB
                 return;
             }
 
+            toggle_cursor_if_gyro(false);
+
             mDoAud_seStartMenu(kSoundPlay);
             show_menu_notification();