@Elena1265 You can't really prevent her review, but if you don't get a notification that she has already left a review, wait until day 13 and a half to leave one for her- that way if she hadn't gotten around to submitting one, she might not see that you have left one in time to leave one herself.
I suspect that she is making up all these complaints because she wants you to refund her, even if she hasn't said as much, in other words, extortion in exchange for not leaving you a bad, lying review.
Even if she does leave a review, it will stand out as an aberration among your 18 5*, glowing reviews-it won't put any guests off booking with you, especially if you leave a response to her review along the lines of "This guest apparently is unclear on what an Airbnb booking is and expected daily maid service as if she was staying in a hotel. The allegations of lawn mowing all day and bedbugs is ludicrous. All our other reviews should make this obvious."
However, make sure you only respond to what she actually writes in the review, not anything she has sent you as private feedback.
If she is messaging you these things now, I would not respond to her private feedback at all. If she threatens to leave you a bad review if you don't give her some refund, contact Airbnb and tell them she is trying to extort you and they hopefully won't allow her to post a review, or will remove it if she posts one.