Fix og:image dimensions metadata mismatch in opposition motions articles

[Copilot]

All 14 opposition motions articles declared og:image:width/height as 1200×630 while the actual referenced image (cia-icon-140.webp) is 140×140, causing incorrect social preview rendering.

Changes

• All 14 language variants (en, sv, da, no, fi, de, fr, es, nl, ar, he, ja, ko, zh): corrected og:image:width/og:image:height to match actual image dimensions

<!-- Before -->
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">

<!-- After -->
<meta property="og:image:width" content="140">
<meta property="og:image:height" content="140">

Aligns with the established pattern in other article series (e.g. government-propositions-*.html).

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