Protonlaunch doesn't use the latest version

[h0m3]

This is a regression on the development channel where a random version of Proton is selected by protonlaunch instead of the latest version based on decresent naming.

This bug doesn't affect the main channel since the old implementation still uses sorted ls instead of the new implementation that uses the cleaner posix for. A alternative needs to be implemented or return to the old implementation using ls.

[h0m3]

Added a new sorting algorithm that runs when the list of proton version is being built on 5b5f085 that should solve the problem without relying on ls.