RSDK-8681 display arm error message in degrees not radians

[raybjork]

No description provided.

[github-actions]

Warning your change may break code samples. If your change modifies any of the following functions please contact @viamrobotics/fleet-management. Thanks!

component	function
base	IsMoving
board	GPIOPinByName
camera	Properties
encoder	Properties
motor	IsMoving
sensor	Readings
servo	Position
arm	EndPosition
audio	MediaProperties
gantry	Lengths
gripper	IsMoving
input_controller	Controls
movement_sensor	LinearAcceleration
power_sensor	Power
pose_tracker	Poses
motion	GetPose
vision	GetProperties

[raybjork]

I also could see an argument for changing the function signature to accept *pb.JointPositions instead of []referenceframe.Input since that way we are returning the error in the units in the same units they are provided. But I'm not sure this is a great idea since it seems likely we will continue to prefer Inputs over pb.JointPositions as we continue to develop arms and would rather avoid the extra breaking change to the package and modules that depend on it.

[raybjork]

I think the cost of having a slightly unintuitive error here is probably worth keeping the package contract stable

[nfranczak]

my opinion is that we should not accept *pb.JointPositions as an argument into functions, so we should keep it as is.