Honestly the depends were a life saver for me. Be sure to check in and visit her too... no one came to help me and I wish anyone would have. Especially after that first month.
Water bottle, ice packs for down below, snacks for when breastfeeding. Also when baby comes bring meals or make meal that can be frozen and heat up.
Snacks that can be grabbed and eaten with one hand! Maybe a nice eye mask so that she can nap during the day Lip balm - I was sooo dehydrated after having my little one Hand cream - because I remember washing and sanitising hands a lot due to the number of nappies in the early days
Voucher for COOK - the frozen food shop. Nice and healthy.
Sanctuary spa has a gift box called new mum, I loved that one as a gift. I'd personally skip clothes, maybe give a clay kit, muslin cloths, nipple cream, bath time products for baby, lactation cookies mix for mum, fragranced nappy bags, etc
Someone got me a voucher for Deliveroo and it was a lifesaver!