fix: include index files when traversing `files` field (#17)

* feat: consider files field from package.json

* chore: added empty folder to fix the tests

* fix: eslint

* fix: index files are included, non-existent packages not throwing error

Co-authored-by: blam <[email protected]>

fix: return if no matchedPackage (#16)

ci: node 14

fix: update get-monorepo-packages (#7)

Support new yarn packages schema

feat: use get-monorepo-packages (#5)

feat: don't error if no packages are found (#3)

fix: allow relative imports within a package

fix: handle exceptions from parse-package-name

fix: remove @scopes from examples