Summary: Warp Code launch

Why It Matters: This change shows Warp is focusing on a new feature called Warp Code.

What Changed:

• Removed the "Announcing Warp University" section.
• Added a new section "Introducing Warp Code: the fastest way from prompt to production."
• Added a new section "Welcome friends of !" with a discount code "LENNY05".
• Removed the detailed list of download options from the main content area.
• Added new sections about "From prompt to production," "A new way to code," and "Full software lifecycle."
• Updated the "Features" list in the footer.
• Removed the "Warp for Deployment" link from the footer.
• Changed the "How We Work" link in the footer to lowercase.
• Added new sections under "All Downloads" for specific Linux and Windows download types.