UI refresh follow-ups + review fixes

[alandefreitas]

Supersedes #1304 — the same change, squashed from 44 commits into 5.

Commits

• docs(ui): shared syntax palette and gutter token
• docs(ui): docs page theme refresh
• docs(ui): config reference preview alignment
• docs(ui): flowchart diagram theme
• docs(website): landing page refresh

Notes

• Docs-only: Antora theme and landing page; no source code changes.
• Content is byte-identical to UI refresh follow-ups + review fixes #1304's head; authorship preserved (julioest).
• The original PR already passed CI.

[github-actions]

⚠️ Warnings

Warning

PR description is short (542 chars) relative to the size of this change (~1809 lines of churn). Aim for around 865 characters — expand on rationale, testing, and reviewer guidance.

ℹ️ Info

Note

PR description is missing template sections: Changes, Testing, Documentation. Following the pull request template helps reviewers find rationale, testing notes, and docs status quickly.

🧾 Changes by Scope

Scope	Lines Δ%	Lines Δ	Lines +	Lines -	Files Δ	Files +	Files ~	Files ↔	Files -
📄 Docs	100%	1809	1273	536	31	3	25	-	3
Total	100%	1809	1273	536	31	3	25	-	3

Legend: Files + (added), Files ~ (modified), Files ↔ (renamed), Files - (removed)

🔝 Top Files

• docs/website/styles.css (Docs): 589 lines Δ (+387 / -202)
• docs/website/index.html (Docs): 242 lines Δ (+49 / -193)
• docs/ui/src/css/toc.css (Docs): 169 lines Δ (+169 / -0)

Generated by 🚫 dangerJS against 70df914

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.12%. Comparing base (adc6242) to head (70df914).
⚠️ Report is 5 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1325   +/-   ##
========================================
  Coverage    83.12%   83.12%           
========================================
  Files           35       35           
  Lines         3662     3662           
  Branches       844      844           
========================================
  Hits          3044     3044           
  Misses         410      410           
  Partials       208      208           

Flag	Coverage Δ
bootstrap	83.12% <ø> (ø)

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