Address feedback on atomic-insight-result-action migration to Lit

[Copilot]

Addresses review feedback on #7172 by improving the JSDoc comment for AtomicInsightResultAction.

• Rephrased the introductory sentence to remove redundancy (event info was duplicated in prose and will now live in @event)
• Added missing @event atomicInsightResultActionClicked JSDoc tag per component documentation guidelines

✅ 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

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