Remove description and header from use cases page

- Removed description from frontmatter
- Removed 'Use Cases' header to go straight into content
- Cleaner, more direct presentation

Co-authored-by: Jay Hack <[email protected]>

Author: codegen-sh[bot]

docs/introduction/use-cases.mdx

@@ -3,11 +3,8 @@ title: "Use Cases"
 sidebarTitle: "Use Cases"
 icon: "lightbulb"
 iconType: "solid"
-description: "Real-world examples of how teams use Codegen agents based on analysis of thousands of customer interactions"
 ---
 
-# Use Cases
-
 This page provides an LLM-generated summary of how teams are using Codegen agents, based on analysis of tens of thousands of customer agent runs. The data represents actual requests from users across different organizations and communication channels.
 
 ## 🏗️ Code Development & Implementation (35%)