Enhance CLI documentation with practical usage details

[mintlify]

Added practical information and use cases throughout the CLI documentation to help users understand when and why to use different commands and flags. Enhanced sections include local preview benefits, command explanations with bullet-point use cases, and new documentation for --version and --help commands.

Files changed

• installation.mdx - Enhanced with practical usage information, benefits, and examples for all CLI commands

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Note

Enhances CLI docs to clarify real-world usage and surface key flags and utilities.

• Expands installation.mdx with guidance for local preview via mint dev, custom --port, --disable-openapi, and --groups flows
• Adds context notes, tips, and warnings; details starter kit contents and theme options for mint new
• Documents maintenance commands: mint broken-links, mint a11y (with skip flags), mint openapi-check, mint rename, and mint migrate-mdx
• Improves update instructions (mint update, reinstall paths) and adds references for mint --version and mint --help

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