chore(atomic): migrate atomic-commerce-interface to Lit

[fpbrault]

Atomic Commerce Interface Component Specification

📝 Requirements

The atomic-commerce-interface component is designed to the parent to other atomic commerce components in a commerce page.

• It handles the headless commerce engine and localization configurations
• Used for all atomic commerce components (except for atomic-commerce-recommendation-list, which must have atomic-commerce-recommendation-interface as a parent)
• Can be initialized with an already existing engine, or initialize a new one.
• Handles initialization of child components when ready (and queue their initialization event when not yet ready)
• Can store the state in the url using the URL manager
• Can provide the bindings to other components through context

♿ Accessibility

• Adds the atomic-aria-live element to the DOM, which is used for aria-live messages

✅ Checklist

• 🧪 The component is unit tested
• 🧪 The component includes E2E tests
• 🗑️ Old Cypress tests exclusive to the component are removed
• ♿ The component complies with the Web Content Accessibility Guidelines.
• 🌐 All strings intended for humans or assistive technology must be localized with i18n.
• 📦 The Lit component is exported in the appropriate index.ts and lazy-index.ts files.
• 🎨 CSS parts are documented still accessible.
• 🦥 Slotted Content, public methods and properties are documented

https://coveord.atlassian.net/browse/KIT-3932

[github-actions]

Pull Request Report

PR Title

✅ Title follows the conventional commit spec.

Live demo links

• Storybook

• Playwright report

Bundle Size

File	Old (kb)	New (kb)	Change (%)
case-assist	248.6	248.6	0
commerce	361	361	0
search	419.6	419.6	0
insight	410.8	410.8	0
recommendation	259.5	259.5	0
ssr	413.4	413.4	0
ssr-commerce	377.5	377.5	0