Update .prettierignore

See merge request !97

Update tox.ini

See merge request !88

Update .eslintrc.js

See merge request !83

Update .dev-js/package.json

See merge request !89

Update .gitignore

See merge request !91

Update pyproject.toml

See merge request !90

Update pyproject.toml

See merge request !86

Update tox.ini

See merge request !87

Update to Core 4.0

See merge request !85

Update tox.ini

See merge request !82

Update pyproject.toml

See merge request !84

Prepare release 3.0b0

See merge request !81

Allow core 3.0

See merge request !79