We've removed the ability to directly reference JS and CSS files
for form fields and other SilverStripe features in favour of a common bundle built by Webpack.
The logical next step is to make the framework module free of frontend dependencies,
which should simplify its operation, and avoid another time intensive "npm install" on a module.
Tests were previously excluded from eslint calls. This leads to messier
code inside tests, and potentially errors.
Now they all meet the listing rules, and so we don’t need to ignore
tests in .eslintignore.
