Support removing "Screen" controls on `zhimi.airp.mb5`
**Describe the idea or improvement**
I just set up `zhimi.airp.mb5` device on homebridge, but somehow I can't remove "screen" brightness toggles.
If there's feature about removing screen brightness toggles in home bridge, it will be nice

**Describe the solution you'd like**
Add some configurable option for screen brightness

**Additional context**
`"ledControl": false` doesn't do anything.