docs: add docs for splitting UTXOs, maxOutputs and maxInputs

[maschad]

• Closes Add docs around UTXO dismantling/consolidation #3429

Release notes

In this release, we:

• Improve documentation for cookbook/combining-utxos
• Added documentation for cookbook/splitting-utxos

Summary

I've added a section about maxOutputs to the Combining UTXOs docs as well as added a new docs on how to split UTXOs

Checklist

• All changes are covered by tests (or not applicable)
• All changes are documented (or not applicable)
• I reviewed the entire PR myself (preferably, on GH UI)
• I described all Breaking Changes (or there's none)

[vercel]

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[codspeed-hq]

CodSpeed Performance Report

Merging #3435 will improve performances by 75.73%

_{Comparing mc/docs/add-docs-around-utxo-splitting (113eb45) with master (896bf5b)}

Summary

⚡ 1 improvements
✅ 17 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	mc/docs/add-docs-around-utxo-splitting	Change
⚡	should successfully transfer a single asset between wallets (x20 times)	103.2 ms	58.7 ms	+75.73%

[github-actions]

Coverage Report:

Lines	Branches	Functions	Statements
76.34%(-0.08%)	69.86%(-0.02%)	74.3%(-0.16%)	76.37%(-0.08%)

Changed Files:

Ok	File (✨=New File)	Lines	Branches	Functions	Statements
🔴	packages/account/src/providers/transaction-request/transaction-request.ts	88.57% (+0%)	78.08% (+1.37%)	84% (+0%)	88.81% (+0%)
🔴	✨ packages/utils/src/test-utils/vitest.matchers.ts	10% (+10%)	0% (+0%)	0% (+0%)	10% (+10%)