Summary: Cline adds Grok support and JetBrains integration

Why It Matters: Cline is expanding its reach beyond VS Code users and adding support for xAI’s Grok model to its primary headline features.

What Changed:

• Updated the main headline to feature Grok instead of GPT and Claude.
• Changed the primary platform focus from VS Code and CLI to JetBrains.
• Added new video demonstration tags to the "Coding Partner" and "Put Cline to Work" sections.
• Replaced the "Loading 3D Experience" placeholder with a large ASCII art graphic.