Trying to run examples - warnings and errors in TL:DR first build process

[psychemedia]

Trytin to ruyn examples, following the TL:DR. I found I had to do the following to make the errors go away and get a build of the toolbar-button demo to build:

npm install
npm install --save-dev jest ts-jest
pip install --upgrade hatchling

I assume there is also a prior requirement to that of getting a recent version on node installed.

[fcollonval]

Thanks @psychemedia

I open #238 to fix this - it removes types: ["jest"] in tsconfig.json.