fix(docs): contract-tutorial-hardhat-node

[danforbes]

• Ganache has been deprecated, use Hardhat
• Use JavaScript instead of TypeScript
• The basic smart contract guide should come before Mastering Smart Contracts
• Improvements (more links, formatting/consistency) and simplifications

This uses a persistent Hardhat development network and would replace #7075

[github-actions]

Bundle Stats

Hey there, this message comes from a GitHub action that helps you and reviewers to understand how these changes affect the size of this project's bundle.

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Total

Files count	Total bundle size	% Changed
10	630.32 kB	0%

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No files were changed

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Bigger

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Unchanged

Asset	File Size	% Changed
web3.min.js	611.03 kB	0%
../lib/commonjs/index.d.ts	8.69 kB	0%
../lib/commonjs/accounts.d.ts	3.89 kB	0%
../lib/commonjs/types.d.ts	2.67 kB	0%
../lib/commonjs/web3.d.ts	1.35 kB	0%
../lib/commonjs/web3_eip6963.d.ts	1.2 kB	0%
../lib/commonjs/abi.d.ts	999 B	0%
../lib/commonjs/eth.exports.d.ts	280 B	0%
../lib/commonjs/providers.exports.d.ts	183 B	0%
../lib/commonjs/version.d.ts	60 B	0%

[github-actions]

Benchmark

Benchmark suite	Current: e3c00a0	Previous: a7d67c6	Ratio
processingTx	9150 ops/sec (±3.47%)	9004 ops/sec (±4.26%)	0.98
processingContractDeploy	37287 ops/sec (±7.51%)	38832 ops/sec (±7.40%)	1.04
processingContractMethodSend	18829 ops/sec (±6.55%)	18670 ops/sec (±7.23%)	0.99
processingContractMethodCall	37877 ops/sec (±5.23%)	37139 ops/sec (±5.60%)	0.98
abiEncode	43324 ops/sec (±7.05%)	43522 ops/sec (±6.91%)	1.00
abiDecode	30363 ops/sec (±6.55%)	29115 ops/sec (±7.30%)	0.96
sign	1520 ops/sec (±4.03%)	1597 ops/sec (±0.97%)	1.05
verify	371 ops/sec (±0.52%)	369 ops/sec (±0.66%)	0.99

This comment was automatically generated by workflow using github-action-benchmark.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.98%. Comparing base (4358140) to head (a6fe2d9).
Report is 260 commits behind head on 4.x.

❗ Current head a6fe2d9 differs from pull request most recent head e3c00a0

Please upload reports for the commit e3c00a0 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##              4.x    #7076      +/-   ##
==========================================
+ Coverage   87.37%   93.98%   +6.61%     
==========================================
  Files         197      215      +18     
  Lines        7548     8335     +787     
  Branches     2059     2301     +242     
==========================================
+ Hits         6595     7834    +1239     
+ Misses        953      501     -452     

Flag	Coverage Δ
UnitTests	93.98% <ø> (+6.61%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
web3	∅ <ø> (∅)
web3-core	∅ <ø> (∅)
web3-errors	∅ <ø> (∅)
web3-eth	∅ <ø> (∅)
web3-eth-abi	∅ <ø> (∅)
web3-eth-accounts	∅ <ø> (∅)
web3-eth-contract	∅ <ø> (∅)
web3-eth-ens	∅ <ø> (∅)
web3-eth-iban	∅ <ø> (∅)
web3-eth-personal	∅ <ø> (∅)
web3-net	∅ <ø> (∅)
web3-providers-http	∅ <ø> (∅)
web3-providers-ipc	∅ <ø> (∅)
web3-providers-ws	∅ <ø> (∅)
web3-rpc-methods	∅ <ø> (∅)
web3-utils	∅ <ø> (∅)
web3-validator	∅ <ø> (∅)

[luu-alex]

Usually when we deal with docs and private keys, we want to hide the actual private keys in case theres a beginner who decides to reuse an exposed key

Suggested change

	Private Key: 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80
	Private Key: privateKey

[danforbes]

Got it...thank you!