Create a `pickPlural` helper

[macarie]

type Count = 'zero' | 'one' | 'two' | 'few' | 'many' | 'other'

type PickPlural = <
  T extends Partial<Record<Count, string>>,
  C extends Count
>(translations: T, count: C) => T[C]

'other' as the default fallback. It could be configurable.