Investigate improving WASM security in upstream mediainfo.js

[AFCMS]

I would like to get rid of unsafe-eval in CSP, have looked a bit into it and it seems like it could be fixed by some emscripten compile flags?

[AFCMS]

Didn't need it in the end

[AFCMS]

I was wrong.

Got a patched version of mediainfo.js which will fix the problem, will try to contribute it back to the upstream project.

c87497a