Confusing class constants docs

[ZLLentz]

Current Behavior

For example, https://pcdshub.github.io/pcdsdevices/v8.3.0/generated/pcdsdevices.device.GroupDevice.html#pcdsdevices.device.GroupDevice.needs_parent

This class has a constant class attribute that is a list, and it renders in the docs as the straight repr of this.

pcdsdevices/pcdsdevices/device.py

Line 407 in 32bc76c

needs_parent: list[type[OphydObject]] = [

This isn't really any sort of external API, so it's strange that it exists at all in the docs, but if it is included it should be less confusing.

Expected Behavior

These sorts of constants shouldn't be in the docs, or they should be formatted better.

Context / environment

#1217 (comment)