Make PDF previews actually readable

[Moin]

I think there was a fix recently

Regression - PDFs download initiated on click (should be open in new tab)

Currently, I’m finding that clicking on the PDF link when a PDF preview is active currently attempts to download the PDF (undesired) instead of opening it in a new tab. This is with simple self-hosting (single container, no CDN, no S3, horizon theme). This whole thing was addressed back here: The reason why this is a problem is that a common user desire is to read an inline PDF in the entire window, as the iframe is quite restrictive. Download adds an unecessarily annoying step. And there is…