chore(atomic): migrate atomic-external to lit

[fpbrault]

[Component Name] Component Specification

📝 Requirements

The [component-name] component is designed to [brief description of the component's purpose].

• [Requirement 1]: [Brief description of the first requirement]
• [Requirement 2]: [Brief description of the second requirement]

♿ Accessibility

• [Description of accessibility considerations, such as ARIA roles, keyboard navigation, etc.]

⚡ Performance & Security (if applicable)

• [Description of performance considerations, such as asynchronous operations, lazy loading, etc.]
• [Description of security considerations, such as sanitization, preventing XSS attacks, etc.]

⚠️ Risks and Challenges (if applicable)

• [Risk or challenge 1]
• [Risk or challenge 2]

---

✅ Checklist

• 🧪 The component is unit tested
• 🧪 The component includes E2E tests
• 🗑️ Old Cypress tests exclusive to the component are removed
• 📖 The component is documented in storybook with an .mdx file
• ♿ 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
• 🔄 The component outputs the same Angular output as before with Stencil
• 🏷️ The component declares the component type in the HTMLElementTagNameMap

https://coveord.atlassian.net/browse/KIT-[____]

[developer-experience-bot]

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	255.7	255.7	0
commerce	369.5	369.5	0
search	427.4	427.4	0
insight	418.6	418.6	0
recommendation	266.5	266.5	0
ssr	421.8	421.8	0
ssr-commerce	386.7	386.7	0
ssr-commerce-next	387.9	387.9	0
ssr-next	422.4	422.4	0

[vhilotii-coveo]

LGTM 🚀