ESLint does not support plugins as dependencies of shared configs

[Weetbix]

Currently:

• Try adding eslint-config-vivy to an NPM project
• If/when the eslint-config-vivy dependency gets installed, the plugins can be installed in the sub node modules folder, ie:
  • <root>/node_modules/eslint-config-vivy/node_modules/eslint-plugin-prettier
• Then running ESLint breaks as it cannot find the plugin:

Oops! Something went wrong! :(

ESLint: 5.16.0.
ESLint couldn't find the plugin "eslint-plugin-prettier". This can happen for a couple different reasons:

This is discussed here: eslint/eslint#3458
and RFC here:
eslint/rfcs#5

Note: this is not an issue with yarn most of the time due to the flatter hierachy.

One option is to add these plugins as peer dependencies, bu that kind of sucks.
I think we should just leave this for now as internally we are using yarn