Add decimal (float) support for ailment effect in config

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• I've checked for duplicate open and closed issues by using the search function of the issue tracker

What platform are you running Path of Building on?

Windows

Is your feature request related to a problem?

In the config tab, the "effect of ailment" fields do not allow you to input decimals, restricting you to whole numbers.

Describe the solution you'd like

I'd like to be able to specify a decimal rather than being limited to whole numbers. This is mostly relevant for brittle, but might as well do it for the others too.

Ex: Being able to input 2.6 "effect of brittle" instead of having to round to 2 or 3

Describe alternatives you've considered

No response

Additional context

No response

Inizia individuando la gestione degli input degli effetti di ailment nella scheda config e la logica di validazione o conversione dei valori che utilizza. Verifica come i campi brittle e gli altri campi degli ailment rifiutano attualmente i decimali, quindi verifica che valori decimali come 2.6 siano accettati e preservati per ogni campo rilevante.