Hi nagesh!
Sorry for your experience and thanks to @CBRBNN, who are willing to help offcourse. It's nice to see such community where everyone is trying to help:)
I have made the following changes:
https://prnt.sc/vGmsyg84MTCh
https://prnt.sc/JGd-2uXyDkY0
If you want to hide the offcanvas menu from the desktop view then you can use the following custom code too:
#modal-menu-toggler {display: none !important;}
You will find it here too:
https://www.joomshaper.com/documentation/joomla-templates/magnin/customization-tips
Please check and let me know.
Best Regards