If you are really happy with the price bid, being aware that most bids do come in the last minutes even seconds of an auction , and you do have just under 2 days to run, but if you want to sell for the bid price entered now, you can do so.
Click on the item in Active listing, on the left click on the little box and scroll up to the Actions tab, from menu there select end listing selecting the reason.... End to Highest Bidder.
This will sell them the item, and they'll need to proceed to eBay checkout to pay you.
It's a collection item, so send them a message after they have bought and paid, and you can then exchange contact details, they must bring with them the 6 digit QR collection code, otherwise you cannot release the item. This code, is the only proof you'll have, that the item was collected, and can facilitate a faster payout, too.
The above is when using a laptop / PC, sorry I do not use the app or mobile browser, instructions are probably different on those devices.
@chic_and_cheerful