Make the track function add generic so we can type the action it supplies

[nicosantangelo]

From

add(TRANSFER_LAND_SUCCESS, 'Transfer land', action => {
  const { payload } = action as TransferLandSuccessAction
  return {
    id: payload.land.id,
    type: payload.land.type,
    name: payload.land.name,
    address: payload.address
  }
})

to

add<TransferLandSuccessAction>(TRANSFER_LAND_SUCCESS, 'Transfer land', ({payload}) => ({
    id: payload.land.id,
    type: payload.land.type,
    name: payload.land.name,
    address: payload.address
}))