Add End-to-End Tests for Navigation and Page Rendering using Playwright

[segullshairbutt]

This issue is expected to work after Implement Dynamic Navigation for Static HTML Pages As a developer, I want to ensure that our static HTML content is correctly rendered within our dynamic template and that navigation between pages works seamlessly. We should implement end-to-end (E2E) tests using Playwright to achieve this. These tests will verify that:

• Each static HTML page is rendered correctly within the dynamic template.
• Navigation links between pages function as expected.
• Changes to any file affecting UI/text should be detectable during the development

Acceptance Criteria:

• Install Playwright in the project
• All static HTML pages are verified to render correctly within the dynamic template.
• All navigation links between pages are tested and verified to work correctly.
• Set up continuous integration (CI) to run the tests automatically on new commits/pull requests.
• Playwright tests are set up and run automatically in the CI pipeline.