🐛 [BUG] - Documentation build breaks for API

[nspielbau]

Description

Documentation build breaks for API page, I guess it needs to be migrated from when we changed the repo structure.

Reproduction URL

https://github.com/fzi-forschungszentrum-informatik/ros2_ros_bt_py

Reproduction steps

Build documentation manually

Screenshots

No response

Logs

WARNING: autodoc: failed to import module 'debug_manager' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.debug_manager'
WARNING: autodoc: failed to import module 'exceptions' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.exceptions'
WARNING: autodoc: failed to import module 'helpers' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.helpers'
WARNING: autodoc: failed to import module 'node' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.node'
WARNING: autodoc: failed to import module 'node_config' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.node_config'
WARNING: autodoc: failed to import module 'node_data' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.node_data'
WARNING: autodoc: failed to import module 'ros_helpers' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.ros_helpers'
WARNING: autodoc: failed to import module 'tree_manager' from module 'ros_bt_py'; the following exception was raised:
No module named 'ros_bt_py.tree_manager'

ROS 2 Version

No response

OS

No response