i18n(uk): automated Crowdin translation import (part 06 of 13)

[minimalsm]

Summary

• Part 06 of 13 — uk translation import split from i18n: automated Crowdin translation import (uk) #17210
• 23 files

Context

Split from the original large import PR for easier review and independent merging.

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[minimalsm]

Translation Review: Ukrainian (uk) - Part 06

Files reviewed: 23 markdown files (smart-contracts/, standards/, scaling/{state-channels,validium,zk-rollups})

Issues Found & Fixed (822826a)

1. Duplicated heading text in smart-contracts/index.md line 7:

   • Was: ## Що таке смарт контракт? Що таке смарт-контракт?
   • Fixed: ## Що таке смарт-контракт?

2. Spurious text appended to headings in 2 files — the phrase "Чи впливає це оновлення на всі вузли та валідаторів Ethereum?" was concatenated to unrelated headings (Crowdin TM artifact):

   • scaling/validium/index.md line 46: ## Як працює Validium?
   • smart-contracts/composability/index.md line 18: ## Як працює компонування?

3. Escaped bold markdown in smart-contracts/composability/index.md lines 22/24/26:

   • Was: \*\*1. **Модульність**: (renders as literal **1. followed by bold)
   • Fixed: **1. Модульність**: (matches English source pattern)

Checks Passed (no issues)

• No Russian-only characters (ё, ъ, ы, э) in Ukrainian text
• No broken markdown links
• No split inline HTML / MDX components
• No mismatched code fences
• No broken URLs
• No translated brand names (Solidity, Ethereum, MetaMask kept in English)
• Header ID counts match English source across all 23 files

Notes

• Translated strings inside Solidity require() calls and code comments follow the existing Crowdin convention for this repo and are not flagged as errors.

LGTM after the pushed fix.