Windows build failing

Unfortunately, there has been a string of issues in building the latest Molsketch version 0.7.3 for Windows. I am not a Windows user myself and building requires a rather elaborate effort on my part for setting up a cross-compilation build chain (also considering that at this point it appears preferable to build with a static Qt library).
At this point, two small issues remain: * My latest build of OpenBabel seems to require a dynamically linked version of zlib. Luckily, I still have an old build around from Molsketch 0.7.1 that works without this, but it will take some time to figure out and fix the problem. * When testing the latest 0.7.3 release, it turned out that the Wikidata query no longer works in the Windows build. After some investigation, it seems that the problem is caused by HTTPS URLs. Technically, I could probably also go back to an older version of Qt, but would much prefer to update, especially as this also affects OpenSSL, which did have some security patches in the meantime.

Consequently, I'm now considering just updating to Qt 6 right away and possibly skipping the 0.7.3 release of Molsketch for the Windows platform entirely.

If there is anyone who would like to support by helping with or taking over the Windows build, I would very much welcome such an effort.