Fix social preview meta and localize committee name across 14 opposition motions articles

[Copilot]

All 14 opposition motions articles had incorrect social preview dimensions (140×140, summary) inconsistent with other same-date articles, and 11 non-English files contained the untranslated English string "Committee on the Constitution".

Social preview meta (all 14 files)

<!-- Before -->
<meta property="og:image:width" content="140">
<meta property="og:image:height" content="140">
<meta name="twitter:card" content="summary">

<!-- After -->
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta name="twitter:card" content="summary_large_image">

Committee name translations (ar, da, de, es, fi, fr, he, ja, ko, no, zh)

Replaced bare English "Committee on the Constitution" with properly localised equivalents:

Lang	Replacement
ar	لجنة الدستور في البرلمان السويدي (Konstitutionsutskottet، KU)
da	Konstitutionsudskottet (KU)
de	Konstitutionsutskottet (KU), den Verfassungsausschuss des schwedischen Reichstags
es	Comité de la Constitución (Konstitutionsutskottet, KU)
fi	perustuslakivaliokunnassa
fr	Commission de la Constitution du Riksdag (Konstitutionsutskottet, KU)
he	<span lang="sv">Konstitutionsutskottet (KU)</span>
ja	憲法委員会（スウェーデン語: Konstitutionsutskottet, KU）
ko	스웨덴 의회 헌법위원회(Konstitutionsutskottet, KU)
no	Konstitutionsutskottet (KU)
zh	宪法委员会（瑞典语：Konstitutionsutskottet，简称KU）

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