refactor: Update connector-approval e2e selectors to use ARIA roles

[Infinite-Null]

What, Why, and How?

Part of #778

This PR updates the connector-approval E2E tests (tests/e2e/specs/experiments/connector-approval.spec.js) to follow Playwright's recommended best practices. It replaces brittle CSS selectors and DOM structure-dependent locators with resilient, user-facing locators such as getByRole, getByText, and other accessibility-based queries.

Changes

• Replaced CSS and DOM structure-dependent selectors with Playwright user-facing attributes.

Use of AI Tools

AI assistance: Yes
Tool(s): Claude Code
Model(s): Sonnet 4.6
Used for: Code review, PR description

Testing Instructions

Verify that CI passes, or run the updated E2E test locally:

npm run test:e2e tests/e2e/specs/experiments/connector-approval.spec.js

Changelog Entry

Developer: Updated connector-approval E2E selectors to use Playwright user-facing attributes.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.74%. Comparing base (cf0cb09) to head (c714f2c).

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #850   +/-   ##
==========================================
  Coverage      75.74%   75.74%           
  Complexity      2088     2088           
==========================================
  Files             99       99           
  Lines           8630     8630           
==========================================
  Hits            6537     6537           
  Misses          2093     2093           

Flag	Coverage Δ
unit	75.74% <ø> (ø)

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[github-actions]

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Co-authored-by: Infinite-Null <ankitkumarshah@git.wordpress.org>

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