[mod issue] missing xprop support

[LetterN]

possibly related flathub/com.github.bvschaik.julius#2
error in console sh: line 1: xprop: command not found
Mod "camera" at mc version 1.18.2 (and up) uses TinyFileDialogs provided by lwjgl which uses xprop to test the enviroment

[Scrumplex]

Could you try the test build linked in #100?

[LetterN]

still doesnt work, tinyfiledialogs silently fail (but it does not complain about xprop missing)
bumping lwjgl to 3.3.3 seems to fix it (with the xprop patch version)