* Add prettier (in pre-commit and CI)
* Make all file prettier
* Change order
* Add to Azure Pipelines
* Fix a YAML file prettier caught as invalid
* Remove flow mapping using curly braces from all YAML service files
* fix for #19954, discovered tellsticks shows up to be configured
* fix for #19954, authentication issues
* updated tests
* move I/O to executer thread pool
* Apply suggestions from code review
Co-Authored-By: fredrike <fredrik.e@gmail.com>