Deploy to github pages

[ChenPeleg]

No description provided.

[Copilot]

Pull Request Overview

This PR makes several changes to support deployment to GitHub Pages by updating test files, modifying Firebase integration to use a provider abstraction, and updating several course lesson markdown files for improved clarity and formatting. Key changes include:

• Updates to tests in Checkout and AppHeader to improve UI text handling and add new coverage for order submission scenarios.
• Refactoring of Firebase calls in OrdersHistory and Checkout to delegate to a new firebaseProvider.
• Extensive reformatting and content updates in many lesson markdown files.

Reviewed Changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/appHeader.test.jsx	Adjusted the expected label on order history links for improved i18n handling.
tests/Checkout.test.jsx	Added additional tests and updated imports; note there is a potential context order issue.
src/pages/OrdersHistory.jsx	Replaced direct Firebase calls with firebaseProvider and modified markup; check console.log usage.
src/pages/Checkout.jsx	Updated Firebase calls and layout adjustments including order merging with cart items.
src/firebase/firebaseProvider.js	Introduced a provider that conditionally uses local storage in production.
src/components/AppHeader.tsx	Improved responsive navigation layout and styling adjustments.
lessons/*.md	Various content reformatting and minor corrections to course lesson files.

Comments suppressed due to low confidence (2)

tests/Checkout.test.jsx:230

• The baseMockContext is defined after its usage in the test suites, which could lead to reference errors. Consider moving its declaration above the tests that reference it.

const baseMockContext = { cart: [ ... ], setCart: vi.fn(), isAuth: false, setIsAuth: (value) => { } }

src/pages/OrdersHistory.jsx:13

• This logging statement is incomplete and currently does nothing. Either remove it or update it to log relevant data.

console.log