Feat landing page restructure (#345)

Add featured images to blog section
Remove unwanted sections from homepage
Add participant carousel to landing page

<img width="3456" height="8684"
alt="screencapture-127-0-0-1-1111-2025-08-30-17_13_27"
src="https://github.com/user-attachments/assets/f2829a95-8466-4a78-b9c9-ec80103c6e71"
/>

---------

Signed-off-by: Daniel Phillips <[email protected]>

Author: phiro56

content/_index.md

@@ -10,7 +10,7 @@ headline= "Valkey: an open source, in-memory data store"
 long_description= ""
 
 [extra.hero]
-headings = ["FAST.", "RELIABLE.", "OPEN SOURCE, FOREVER."]
+headings = ["FAST. RELIABLE.", "OPEN SOURCE, FOREVER."]
 subtitle = "Valkey is an open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, message queues, and can act as a primary database. The project is backed by the Linux Foundation, ensuring it will remain open source forever."
 button_text = "GET STARTED"
 button_url = "/topics/quickstart"
@@ -48,11 +48,7 @@ url=  "/download/"
 url= "/docs/"
 title= "Read the docs"
 
-[[extra.sidebar]]
-title= "Founding documents"
-[[extra.sidebar.links]]
-title= 'Linux Foundation Launches Open Source Valkey Community'
-url= "https://www.linuxfoundation.org/press/linux-foundation-launches-open-source-valkey-community"
+
 
 +++