Add documentation for Entries component and change default behavior

[Copilot]

Create documentation page for Entries MDX component ✅

Based on the problem statement and exploration of the repository, I created a documentation page for the Entries MDX component following the existing patterns in docs/authoring/*.mdx and changed the component's default behavior.

Completed Tasks:

• Explore the repository structure and understand existing authoring pages
• Understand the Entries component implementation and usage
• Understand the frontmatter pattern and navigation order
• Create docs/authoring/entries.mdx with proper frontmatter and documentation
• Run linting to ensure code quality
• Validate with CI simulation (act)
• Get code review feedback
• Address code review feedback (CodeSandbox capitalization)
• Final code review - no issues found
• Security scan - no vulnerabilities
• Add second CodeSandbox example (id: 5w35n6) as requested by @abernier
• Clarify CodeSandbox integration section to explain how it relates to Entries
• Change component behavior to show all categories by default

Summary:

Component Changes:

• Modified src/components/mdx/Entries/Entries.tsx to change default excludedGroups from ['getting-started'] to []
• Now all categories are shown by default, including getting-started

Documentation:
Created a comprehensive documentation page at docs/authoring/entries.mdx that documents:

• Basic usage of the Entries component with examples
• CodeSandbox integration section explaining how pages with CodeSandbox examples appear in the Entries listing with icons (includes example with id 5w35n6)
• How to exclude specific categories using the excludedGroups prop
• Internal behavior and features of the component
• Responsive layout information (2 columns mobile, 3 columns desktop)

The page follows the exact same structure as other authoring documentation pages, with proper frontmatter metadata, navigation order (14), and sourcecode reference.

Original prompt

sur les modeles de pages authoring/*.md creer une page pour Entries (le composant mdx)

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✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[abernier]

@copilot ok ca marche bien.

2 details:

• pkoi la "categorie" getting-started n'apparait pas (ignoree par defaut)?
• change l'id de la 2e codesandbox par 5w35n6 histoire qu'on ait pas 2x la meme

[Copilot]

@copilot ok ca marche bien.

2 details:
...

Done in commit 4843b85:

1. Added explanation: getting-started category is excluded by default to keep the directory focused on reference documentation
2. Added second CodeSandbox example with id 5w35n6

[abernier]

1. Added explanation: getting-started category is excluded by default to keep the directory focused on reference documentation

do not, change this @copilot

[Copilot]

1. Added explanation: getting-started category is excluded by default to keep the directory focused on reference documentation

do not, change this @copilot

Reverted in commit 39e34d5. Changed back to the simpler text: "The default excluded groups are ['getting-started']."

1. Added explanation: getting-started category is excluded by default to keep the directory focused on reference documentation

do not, change this @copilot

Changed the behavior in commit 4cd7d49. The Entries component now shows all categories by default (changed excludedGroups = [] instead of ['getting-started']). The getting-started category will now appear in the listing.