ZY-M201 fix service call error for detection distance slider

[blakadder]

fixes service call error that pops up when slider is set to 5.5

[make-all]

Where did the 100 come from in the first place? Does the device accept being set to other values than 1.5, 2.5, 3.5, 4.5, 5.5? If not maybe a select is better for this setting.

[make-all]

There also seems to be a bug based on that error message (a < where there should be a <= perhaps). If the step was the issue, then i would expect "(6.0) must be between 1.5 and 5.5" when trying to set to 5.5, as it would be rounded up. Or maybe the bug is just that the error message uses the original value, where it is the already scaled and rounded value that is out of range.

[blakadder]

Step was the initial issue but while playing around with it I realised it accepts steps of 1 and reports them back to the app despite the tuya iot data having step: 100

  - abilityId: 4
    accessMode: rw
    code: far_detection
    description: ''
    extensions:
      iconName: icon-gongneng
      attribute: '1152'
    name: 最远检测距离
    typeSpec:
      max: 550
      min: 150
      scale: 2
      step: 100
      type: value
      typeDefaultValue: 150
      unit: M