Enhance JS section {WIP}

[shahbaz17]

Add viem, web3, ethers support

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• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

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• I've read the contribution guidelines.
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Note

Adds tabbed SDK-based examples for viem, ethers, web3, and Ethereum API, updates gas estimation snippet, and refines the errors table in the send transactions guide.

• Docs — sdk/evm/connect/guides/javascript/send-transactions/index.md:
  • Add tabbed code samples for viem, ethers.js, web3.js, and Ethereum API, all using MetaMaskSDK's provider to send a basic transaction and retrieve a receipt.
  • Replace prior single basic example and remove inline HTML demo; consolidate around SDK-driven snippets per library.
  • Include receipt-waiting patterns (waitForTransactionReceipt, tx.wait, web3.eth.sendTransaction).
  • Minor updates: modernize eth_estimateGas example (consistent syntax, 20% buffer) and reformat the common errors table.

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Project	Deployment	Preview	Comments	Updated (UTC)
metamask-docs	Ready	Preview	Comment	Nov 10, 2025 7:52am