UI test setup struggles; project recreated; encoding issues.

Today I will try to get the tests to run properly through the UI.

I've struggled with various issues, mostly setting up the test project and making it run properly. Seems like dotnet doesn't like simple single project structures, so I've given up and created a full blown solution (sigh).

After I set the project up, I struggled with some phantom files left over which were causing issues when trying to run the tests. While I was trying to fix that, I accidentally deleted the whole test project, so I spent some time recreating it. Luckily it's just a few files.

I'm still dealing with issues related to encoding (I think) and sending the editor content from the frontend. The content seems to be arriving out of order. Not sure how that's possible. I'll have to investigate further, but I'm calling it for the day.