E2E testing with Cypress

[iamdharmesh]

Description of the Change

Closes #261

This PR removes wpacceptance tests and Adds end-to-end testing with Cypress to follow OSBP guide. Test runs automatically on every pull request to the develop branch.

Steps to perform local testing or develop new tests:

1. Install dependencies npm install
2. Start wp-env local development suite npm run env:start
3. Run cypress npm run cypress:run or open developer browser npm run cypress:open

Added Tests:

• Activate plugin.
• Check menu item under Tools menu.
• Visit "Safe Redirect Manager" page.
• Create a redirect rule.
• Test redirect with below rules
  • Normal
  • Wildcard
  • Regex

Verification Process

GitHub Actions workflow "E2E test", expected to pass the test. Refer to "Description of the Change" for local testing.

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Changelog Entry

Add - End-to-end testing with Cypress

Credits

Props @iamdharmesh

[Sidsector9]

LGTM code-wise. Just requires a sync with the base branch.