Build 50

Linux x86_64 release of Marker (egui + MuPDF).

Commit: 3d4b0196fbcd3f0c101e4402ccfa0ef01d5bb0e1

Runtime shared libraries typically needed on the host:
fontconfig, freetype, brotli, jbig2dec, lcms2, libjpeg, openjpeg2, zlib.

License: MIT.

What's Changed

• Math autopair and tab-out (LT4) by @danielschafi in #75

Full Changelog: build-49...build-50