feat(translations): translate 2026-04-18-breaking-1705 to da, no, de, fi

Swedish spring 2026 legislative sprint article translated to:
- Danish (da): Full political register, SWOT table, stakeholder tables
- Norwegian Bokmål (nb/no): lang=nb, og:locale=nb_NO, full content
- German (de): Formal political register, compound nouns, full content
- Finnish (fi): Full political terminology, all sections translated

All files include full 14-language hreflang block and analysis-references section.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: github-actions[bot]