`packagesPath` and `rootDir` reset as absolute path

[QuentinN42]

After I run npx mookme add-pkg -p pkg the json is modified as follow:

{
  "packagesPath": "/home/full/path",
  "packages": [
    "a",
    "b"
  ],
  "addedBehavior": "addAndCommit",
  "rootDir": "/home/full/path"
}

[Maxence Lecanu]

I'm closing this as it will be resolved by v2 in the next beta release