Navigate to WoodMart > Header builder > edit default header (highlighted star icon) or you can go through the admin bar directly https://prnt.sc/Ct9ehRDvvDV9.
Switch to Mobile tab, hover on Mobile menu element, click on Pencil icon and scroll down to Category section > enable Show categories menu option https://prnt.sc/z532Aa-glTHl and you can change the title as well.