Add SummaryCard component for FWE

[schultek]

Add a SummaryCard component for previewing / reviewing the outline of a tutorial.

• As Preview:
• As Review:

[gemini-code-assist]

Summary of Changes

Hello @schultek, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request delivers a new SummaryCard component, enhancing the presentation of tutorial outlines. This component provides a structured way to display key information, such as learning objectives or accomplishments, for tutorials. It is designed to be highly configurable through YAML content, allowing for dynamic and visually appealing summaries within the application.

Highlights

• New SummaryCard Component: Introduces a custom SummaryCard component designed for previewing and reviewing tutorial outlines, providing a structured way to display key information.
• YAML-based Content Definition: The component's content (title, subtitle, and items) is defined using YAML, allowing for flexible and structured data input directly within the component tag.
• Styling and Interactivity: Includes dedicated SCSS for styling the card, supporting both simple list items and expandable detail sections with Material Icons for enhanced user experience.
• Integration into Component System: The SummaryCard is registered as an embeddable component within the application's main component registry, making it available for use across the site.

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[gemini-code-assist]

Code Review

This pull request introduces a new SummaryCard component, which is a great addition for previewing and reviewing tutorial content. The implementation looks solid, with a new Dart component, a data model for YAML parsing, and corresponding styles. I've provided a few suggestions to improve robustness and styling. Specifically, I recommend enforcing content validation in production builds and making some adjustments to the SCSS for better browser consistency and readability. Overall, great work!

[flutter-website-bot]

Visit the preview URL for this PR (updated for commit c115b63):

https://flutter-docs-prod--pr12714-feat-summary-card-fscpacor.web.app

[parlough]

I love it, thanks @schultek!

Let's land this for now and we can revisit differentiating the review version, perhaps with an optional image or checkmark or whatever.

[parlough]

Suggested change

	for (final item in model.items) buildSummaryItem(item),
	]);
	}
	Component buildSummaryItem(SummaryCardItem item) {
	for (final item in model.items) _buildSummaryItem(item),
	]);
	}
	Component _buildSummaryItem(SummaryCardItem item) {