Do not use decimals on durability config

[Alexgamingyz]

I was using the config to change the durability and speed.
The speed worked perfectly fine at 2.5 speed, and my durability was nice at 10.
i tried putting my durability at 7.5 and the game would crash (exit code -1) without saying much information
i then changed the durability to 7 and it worked.