[feature] working properties for rider in linux os (Ubuntu 23.04)

[Mustafa-Agha]

executable won't run because it doesn't use proton to run Bannerlord.exe, and setting it manually doesn't work

[Aragas]

This might a bit out of the scope. I haven't tested debugging via Proton. I do suggest something like ProtonTricks might help with making the exe run with the proper Proton prefix.