fix(refresher): attach scroll listener to custom scroll target

[sean-perkins]

Pull request checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been reviewed and added / updated if needed (for bug fixes / features)
  • Some docs updates need to be made in the ionic-docs repo, in a separate PR. See the contributing guide for details.
• Build (npm run build) was run locally and any changes were pushed
• Lint (npm run lint) has passed locally and any fixes were made for failures

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe): Test migrations

What is the current behavior?

• The ion-refresher usage with custom scroll target does not attach to the correct scroll container
• The pull to refresh tests are written in Puppeteer and don't function correctly for the custom scroll target behavior

Issue URL: #25318

What is the new behavior?

• Attaches the scroll behavior for ion-refresher to the specified custom scroll target
• Migrates refresher tests to Playwright
• Adds additional options to page.goto to support Playwright API
• Exports the function to extend the page fixture, so it can be used when creating new browser contexts (for video recording within Playwright)

Does this introduce a breaking change?

• Yes
• No

Other information

This PR also removes the unnecessary screenshot tests (they did not capture anything relevant to ion-refresher). A follow-up PR will work to introduce screenshot tests for the native & legacy refresher appearances.

Dev-build: 6.1.7-dev.11653327570.1759e1d5 ✅