message: consign link opens modally
diff: import { Box, Serif } from "@artsy/palette"
  import { ArtworkExtraLinks_artwork } from "__generated__/ArtworkExtraLinks_artwork.graphql"
  import SwitchBoard from "lib/NativeModules/SwitchBoard"
  +import { Router } from "lib/utils/router"
  import React from "react"
  import { Text } from "react-native"
  import { createFragmentContainer, graphql } from "react-relay"
  @@ -14,11 +15,15 @@ export class ArtworkExtraLinks extends React.Component<ArtworkExtraLinksProps> {
  SwitchBoard.presentNavigationViewController(this, href)
  }
  + handleConsignmentsTap() {
  + SwitchBoard.presentNavigationViewController(this, Router.ConsignmentsStartSubmission)
  + }
  +
  renderConsignmentsLine(artistsCount) {
  return (
  <Serif size="3t" color="black60">
  Want to sell a work by {artistsCount === 1 ? "this artist" : "these artists"}?{" "}
  - <Text style={{ textDecorationLine: "underline" }} onPress={() => this.handleTap("/consign/info")}>
  + <Text style={{ textDecorationLine: "underline" }} onPress={() => this.handleConsignmentsTap()}>
  Consign with Artsy.
  </Text>
  </Serif>
  @@ -29,7 +34,7 @@ export class ArtworkExtraLinks extends React.Component<ArtworkExtraLinksProps> {
  const { artwork } = this.props
  const consignableArtistsCount = artwork.artists.filter(artist => artist.is_consignable).length
  - return <Box>{!!consignableArtistsCount && this.renderConsignmentsLine(consignableArtistsCount)}</Box>
  + return <Box>{this.renderConsignmentsLine(consignableArtistsCount)}</Box>
  }
  }
  