chore: Change text in contact info new fields

[steverydz]

Done

Changes text from "Add field" to "Add link" on the publisher listing page contact info section

How to QA

• Go to https://snapcraft-io-5454.demos.haus/<SNAP_NAME>/listing
• Scroll to "Contact information" section
• Check that the buttons to add a new field now says "Add link"

Testing

• This PR has tests
• No testing required (explain why):

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-31112

[webteam-app]

Demo

Jenkins

demos.haus

[Copilot]

Pull Request Overview

This PR updates button text in the contact information section to be more specific, changing "Add field" to "Add link" to better reflect the action being performed.

Key Changes

• Updated button labels from "Add field" to "Add link" in the ContactFields component (2 instances)
• Updated corresponding test assertions to match the new button text

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
static/js/publisher/pages/Listing/ContactInformation/ContactFields.tsx	Changed button text from "Add field" to "Add link" in two button elements
static/js/publisher/pages/Listing/ContactInformation/tests/ContactFields.test.tsx	Updated test assertions to verify the new "Add link" button text

[abbiesims]

LGTM 👍