Add components overview page

[handotdev]

Added a new components overview page after quickstart that summarizes and categorizes all available components. Updated navigation to include the new page in the "Get started" group.

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Created by Mintlify agent

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Note

Adds a components overview page and links it in the Components section of the docs navigation.

• Docs:
  • New page: components/index.mdx introducing a categorized overview of component types (structure, emphasis, toggles, API docs, navigation links, visuals) with cards linking to individual component pages.
• Navigation:
  • Adds components/index to docs.json under Create content > Components, positioned before existing component pages.

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