Rewrite quickstart page

[handotdev]

Documentation changes

Complete rewrite of the quickstart page to enhance clarity, user experience, and engagement. This update includes:

• A more compelling introduction and a clearer value proposition.
• Improved structure and flow using Steps, CardGroup, and AccordionGroup components.
• Streamlined GitHub connection and distinct guidance for code-first vs. visual editor workflows.
• Expanded and reorganized troubleshooting section with common issues and solutions.
• Strategic next steps to guide users to advanced features.

Closes

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For Reviewers

When reviewing documentation PRs, please consider:

✅ Technical accuracy

• Code examples work as written
• Commands and configurations are correct
• Links resolve to the right destinations
• Prerequisites and requirements are accurate

✅ Clarity and completeness

• Instructions are clear and easy to follow
• Steps are in logical order
• Nothing important is missing
• Examples help illustrate the concepts

✅ User experience

• A new user could follow these docs successfully
• Common gotchas or edge cases are addressed
• Error messages or troubleshooting guidance is helpful

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Slack Thread

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}

[ethanpalm]

test PR