Setup Playwright e2e testing

[AlexJSully]

No description provided.

[Copilot]

Pull Request Overview

This PR sets up Playwright end-to-end testing infrastructure for the SciGrade application, including accessibility testing capabilities using axe-playwright. The changes integrate Playwright tests into the validation workflow and improve HTML semantic structure for better accessibility.

• Adds comprehensive Playwright configuration with multi-browser and device testing
• Implements accessibility testing utilities with axe-playwright integration
• Creates initial homepage e2e tests with automated accessibility checks
• Updates build pipeline to include Playwright tests in validation

Reviewed Changes

Copilot reviewed 11 out of 16 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
playwright.config.js	Comprehensive test configuration with multi-browser/device support and webServer setup
tests/playwright/utils/base.js	Base test utilities for extended Playwright functionality
tests/playwright/utils/accessibility.js	Accessibility testing helper using axe-playwright
tests/playwright/homepage.spec.js	Homepage e2e tests with accessibility validation
package.json	Added Playwright dependencies and test scripts
jest.config.mjs	Updated test paths and patterns for better separation
eslint.config.js	Added Playwright-specific ESLint configuration
core/systemrun.html	Improved semantic HTML structure with proper navigation elements
core/scripts/login.js	Added accessibility label to gene dropdown
core/scripts/crispr_scripts.js	Variable naming consistency and accessibility improvements
.github/workflows/code-qa.yaml	Integrated Playwright tests into CI pipeline

Comments suppressed due to low confidence (1)

core/scripts/crispr_scripts.js:1

• Corrected spelling of 'aira-label' to 'aria-label'.

/* eslint-disable indent */

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