Better error message when behavior is started without sufficient config files

[JanNiklasFeld]

[taskset-35] Traceback (most recent call last):
[taskset-35]   File "/home/bitbots/colcon_ws/install/bitbots_body_behavior/lib/bitbots_body_behavior/body_behavior", line 33, in <module>
[taskset-35]     sys.exit(load_entry_point('bitbots-body-behavior', 'console_scripts', 'body_behavior')())
[taskset-35]   File "/home/bitbots/colcon_ws/build/bitbots_body_behavior/bitbots_body_behavior/body_behavior.py", line 98, in main
[taskset-35]     body_dsd = BodyDSD(node)
[taskset-35]   File "<@beartype(bitbots_body_behavior.body_behavior.BodyDSD.__init__) at 0x7f1d8c38d6c0>", line 32, in __init__
[taskset-35]   File "/home/bitbots/colcon_ws/build/bitbots_body_behavior/bitbots_body_behavior/body_behavior.py", line 27, in __init__
[taskset-35]     blackboard = BodyBlackboard(node, self.tf_buffer)
[taskset-35]   File "<@beartype(bitbots_blackboard.body_blackboard.BodyBlackboard.__init__) at 0x7f1d8c38d120>", line 51, in __init__
[taskset-35]   File "/home/bitbots/colcon_ws/install/bitbots_blackboard/lib/python3.10/site-packages/bitbots_blackboard/body_blackboard.py", line 29, in __init__
[taskset-35]     self.misc = MiscCapsule(self.node, self)
[taskset-35]   File "/home/bitbots/colcon_ws/install/bitbots_blackboard/lib/python3.10/site-packages/bitbots_blackboard/capsules/misc_capsule.py", line 33, in __init__
[taskset-35]     self.position_number: int = gamestate_settings["position_number"]
[taskset-35]   File "/home/bitbots/.local/lib/python3.10/site-packages/beartype/door/_func/doorcheck.py", line 137, in die_if_unbearable
[taskset-35]     func_raiser(obj)  # pyright: ignore
[taskset-35]   File "<@beartype(__beartype_checker_3) at 0x5ce45f820ec0>", line 19, in __beartype_checker_3
[taskset-35] beartype.roar.BeartypeDoorHintViolation: Callable bitbots_blackboard.capsules.misc_capsule.MiscCapsule.__init__() local variable "self" value "None" violates type hint <class 'int'>, as <class "builtins.NoneType"> "None" not instance of int.

This is raised because the robot was not configured in building. We should catch and raise this error better, to allow fixes.