As discussed with the product team we want to enforce kebab-case file names for
all files, with the exception of files which export a single class, in which
case they should be PascalCase and reflect the class which they export.
This will help find classes faster, and should push better naming for them too.
Some files and packages have been excluded from this linting, specifically when
a library or framework depends on the naming of a file for the functionality
e.g. Ember, knex-migrator, adapter-manager
refs https://github.com/TryGhost/Toolbox/issues/345
- this commit bumps `eslint-plugin-ghost`, which bumps compatiblity to
2022
- this also removes a lot of the manually-added
`parserOptions.ecmaVersion` that we had in imported packages, in favor
of the value set in `eslint-plugin-ghost`
refs https://github.com/TryGhost/Toolbox/issues/354
- this commit turns the Ghost repo into a monorepo so we can bring our
internal packages back in, which makes life easier when working on
Ghost
