fix typos and codestyle

[orgua]

additional commit with a run of PowerShell-Beautifier. Probably not wanted, but the more explicit commands have an advantage -> if unwanted you could just cherry-pick the typo-commit.

I could also prepare a github action that test-runs the scripts in a W10 & W11 container and could function as a test-suite.

[Karl-WE]

I would like to add to this PR.

Please open the code in a proper rditor like Visual Studio Code instead of deprecated ISE @MysticFoxDE.

You will see further improvement proposals on the bottom left tap and can fix them right click or search and replace

• replace aliases
• null parameters should be reversed