Party front/back correction for vs100

Fixed swapped front/back media assignments in party/cdv-data-en.js and archive/cdv-data-en.js.

Affected main item IDs:
38125, 38128, 38135, 38139, 38142, 38145, 38151, 38160, 38163, 38166, 38169, 38171, 38174, 38176, 38178, 38184, 38188, 38190, 38192, 38194, 38196, 38201, 38203, 38215, 38218, 38220, 38222, 38224, 38229, 38233, 38235, 38238, 38242

These records kept their item IDs, titles, dates, tags, and reverse links; only the media fields for the main item and its reverse side were exchanged so that the front photo appears as the main card and the written/postcard back appears as the reverse side.

Also split false pair 38445/38444: both images are front-side photographs, so 38445 now has no reverse object and 38444 is visible as its own single item.