Typing fixes for the stream controller (#2540)

Typing fixes for the stream controller (#2540)

* work in progress

* mypy fixes for streams.py

* Fix typos

* Another typo

* PR review changes

* Fixes after merge conflicts

* Revert unnecessary change

* Remove unnecessary comments

* More changes post conflict resolve

* Remove exclude

* organise imports

* Updates post other commits

* Catch possible no stream details

* Updates for new commits

* Fix type error post conflict merge

* Simplify

* Simplify with type hints to config controller

* Typing adjustments

* Fix missing return type

* improve code clarity

* switch to assert for none check

* Fix return type mypy error

* Revert unnecessary bracket

* Use default parameter