Revamped documentation

[jacobsmith928]

We recently redid our documentation to make it more accurate and easier to use. A few key changes:

• Moved from Astro Starlight to Mintlify under the hood
• Introduced a tabbed navigation that is separate from our website for visual clarity
• Reduced focus on API reference content in favor of CLI content
• Rewrote all product documentation to focus on clarity
• Removed outdated content
• Included videos and images (more on the way!)

Thanks for your help in offering up feedback and areas of improvement!