Migrate to Playwright for E2E tests

[Gauravjeetsingh]

Migrate E2E tests from Cypress to Playwright to improve performance, reliability, and maintainability.

Current State

The project currently uses Cypress for E2E testing with:

12 test files covering:

• Navigation (4 tests: index, random-shabads, sundar-gutka, sync)
• Search (4 tests: full-word-gurmukhi, first-letter-start, first-letter-anywhere, romanized-first-letter-anywhere)
• Multiview (3 tests: index, search, shabad)
• Settings (1 test: sources)

Custom Cypress commands:

• checkGranthIndices - Tests granth index navigation
• loadAmritKeertanFirstChapter - Loads Amrit Keertan chapters
• checkSgCard - Validates Sundar Gutka card styling

Phase 1: Setup

• Install Playwright and dependencies (@playwright/test)
• Create playwright.config.js with base configuration
• Set up test directory structure (tests/e2e/)

Phase 2: Migrate Custom Commands

• Convert checkGranthIndices to Playwright helper function
• Convert loadAmritKeertanFirstChapter to Playwright helper function
• Convert checkSgCard to Playwright helper function
• Create helper for toast notification dismissal
• Create utilities in tests/e2e/helpers/

Phase 3: Migrate Test Files

• cypress/integration/navigation/index.spec.js
• cypress/integration/navigation/random-shabads.spec.js
• cypress/integration/navigation/sundar-gutka.spec.js
• cypress/integration/navigation/sync.spec.js
• cypress/integration/search/full-word-gurmukhi.spec.js
• cypress/integration/search/first-letter-start.spec.js
• cypress/integration/search/first-letter-anywhere.spec.js
• cypress/integration/search/romanized-first-letter-anywhere.spec.js
• cypress/integration/multiview/index.spec.js
• cypress/integration/multiview/search.spec.js
• cypress/integration/multiview/shabad.spec.js
• cypress/integration/settings/sources.spec.js

Phase 4: Remove cypress:open and cypress:record

• Remove Cypress dependencies (cypress, eslint-plugin-cypress)
• Update CI/CD workflows (if applicable)
• Remove cypress/ directory
• Remove cypress.json
• Update documentation
• Verify all tests pass on multiple browsers