chore(deps): update react monorepo to v19.3.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@types/react (source)	19.2.18 → 19.3.0
@types/react-dom (source)	19.2.7 → 19.3.0
react (source)	19.2.8 → 19.3.0
react-dom (source)	19.2.8 → 19.3.0

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Release Notes

react/react (react)

v19.3.0

Compare Source

react/react (react-dom)

v19.3.0

Compare Source

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[netlify]

❌ Deploy Preview for semantic-template failed. Why did it fail? →

Name	Link
🔨 Latest commit	11f3de7
🔍 Latest deploy log	https://app.netlify.com/projects/semantic-template/deploys/6aa658989922850008940e51

[happy-haki]

Daily maintainer check 2026-09-11: HOLD under 7-day policy.

• npm publish age: react@19.3.0 published 2026-09-09T17:21Z (~31h old).
• Minor jump (19.2.8→19.3.0) of runtime deps (react, react-dom, @types/react, @types/react-dom) → runtime behavior risk, not eligible for the low-risk exception.
• Netlify deploy-preview currently failing on this PR (tracked in maintenance: investigate persistent Netlify deploy-preview failures #193).
  Re-evaluate on/after 2026-09-16 with local gates.

[happy-haki]

Daily maintainer check 2026-09-13: HOLD (7-day rule).

• npm publish age: react@19.3.0 2026-09-09T17:21Z, react-dom@19.3.0 2026-09-09T17:17Z, @types/react@19.3.0 / @types/react-dom@19.3.0 2026-09-09T18:07Z (~3.3 days) → eligible from 2026-09-16.
• Minor runtime framework jump (react/react-dom) → not eligible for the <7d low-risk exception.
• Netlify preview for this branch passed (known content-independent pattern, maintenance: investigate persistent Netlify deploy-preview failures #193); PR mergeable.