docs: remove 'How the Toolkit Fits Together' section from homepage

- Deleted the section that described how the API Server, Mobile Client, and Web Dashboard work together
- This change simplifies the homepage content and reduces redundancy, as this information is already covered in the architecture page

Author: fulleni

src/content/docs/index.mdx

@@ -100,12 +100,6 @@ Welcome to the Flutter News App Full Source Code Toolkit. This is more than just
 	</Card>
 </div>
 
-## How the Toolkit Fits Together
-
-The **API Server** is the central brain. Both the **Mobile Client** and the **Web Dashboard** communicate with it to fetch data, authenticate users, and retrieve configuration. The **Web Dashboard** is used to populate the content that the **Mobile Client** displays.
-
-This separation of concerns makes the toolkit robust and flexible. You can manage your entire platform from the web and deliver updates to your mobile users instantly.
-
 ## Get Started: Try, Evaluate, and Launch
 
 This toolkit is source-available, allowing you to explore the code and ensure it meets your standards before making a commitment.