@Mary-Jane15 When I give tips to waiters, drivers, and other service providers, it's not just a matter of custom - it's because I know they're being paid a substandard wage and that the customer is expected to make up for that. That's a really lousy system and I disagree with it, but I don't want the worker to be the one punished for it.
If I were to rent a nice chalet like yours instead of a luxury hotel, I'd really want to assume that all of the money (less Airbnb fees) was going to local people in the community and contributing toward a living wage. Tipping cleaners in an Airbnb doesn't really make sense here - plenty of hosts are perfectly capable of doing their own cleaning, thank you very much. If a host made any suggestion that on top of the rent and cleaning fee I should also leave a tip, my impression would be that they were underpaying their workers, and I would not hesitate to express my anger at their pettiness in the review.
As an employer, I recommend that you establish a mutual agreement with your housekeepers about how their work will be compensated and ensure that they are getting the appropriate rate for every job without any consideration of tips. There's absolutely no rule that the Cleaning Fee you charge guests has to be equal to what you pay cleaners; that number has nothing to do with cleaning, it's basically just a penalty charge for shorter stays.