LagAssist 2.31

• Fix GUI not working 1.20.4 and 1.20.6
• Fix benchmark result
• Calculate players based on cores
• Fix wrong calculate cores
• Calculate score based on cores
• Fix high CPU usage on statsbar (Thanks to @Dabaski)
• Add 1.21.1 support
• Add legacy build (1.20.3 or below)
• Fix piston not working (Thanks to @myavuzokumus)

Note : The Legacy Version might not worked for 1.18 and below. Tested on 1.19.4.