Fix language switcher styling and JSON-LD wordCount in February 2026 monthly review (14 languages)

[Copilot]

Two structural issues in all 14 2026-02-28-monthly-review-*.html files flagged in review:

• Missing lang-link CSS class — switcher links rendered unstyled (no padding, active highlight, or focus rings). Active link also lacked the class.
• Hardcoded "wordCount": 3500 in JSON-LD — inaccurate and inconsistent with all other news pages which omit this field.

Changes

• Language switcher — added class="lang-link" to all inactive links; active link updated from class="active" → class="lang-link active" (retaining aria-current="page"):

<!-- before -->
<a href="2026-02-28-monthly-review-en.html" class="active" aria-current="page">EN</a>
<a href="2026-02-28-monthly-review-sv.html" >SV</a>

<!-- after -->
<a href="2026-02-28-monthly-review-en.html" class="lang-link active" aria-current="page">EN</a>
<a href="2026-02-28-monthly-review-sv.html" class="lang-link">SV</a>

• JSON-LD — removed "wordCount": 3500 from all 14 files.

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