Update Sharding page

[samajammin]

Is your feature request related to a problem? Please describe.

Our sharding page is outdated - we should revamp this to reflect the latest roadmap.

Describe the solution you'd like

Overhaul https://ethereum.org/en/upgrades/shard-chains/

• Update page slug to /sharding/ given "shard chains" is no longer an accurate description
• Explain iterative approach (danksharding / protodanksharding)

Potential resources to link out to

• https://www.eip4844.com/
• https://members.delphidigital.io/reports/the-hitchhikers-guide-to-ethereum

Describe alternatives you've considered

For a quick fix (if we don't have bandwidth for a full rehaul of the page), we could keep the page content the same & just add a banner/disclaimer at the top, e.g.

"Execution Sharding has been deprioritized from the Ethereum roadmap in favour of Rollups [link to rollups page]. An update which refocuses this page on data sharding is expected in Q3"

Hat tip to @timbeiko for the suggestion 😄

Additional context

Somewhat related to #6523

[samajammin]

@wackerow assigning to you for now but anyone: feel free to comment if you'd like to help out with this!

[minimalsm]

Just gotta link to EIP-4488 now?

[samajammin]

Removing stale label.

Just gotta link to EIP-4488 now?

This would definitely be a great short-term fix but I do think the content of this page needs a overhaul. It's significantly outdated & doesn't reflect the latest roadmap.

[covendev]

I would like to help with this issue can you please assign it to me?

[github-actions[bot]]

This issue is stale because it has been open 45 days with no activity.

[ossayed]

Hi there I'd love to work on this issue!

[corwintines]

I think we can close this issue out after the roadmap work done by @jmcook1186