PaginatedGui#getPagesNum returns Integer.MAX_VALUE when optional field is not set

[IllusionTheDev]

Hey there, no clue if this is a design flaw.

There's an optional field named pageSize in the PaginatedGui class, with an optional setter.
When the value is unset (0), and getPagesNum is called, there is a division by 0, which gets casted to an int returning MAX_VALUE.

Code in question:

[kazuryyx]

I noticed this too, players could infinitely click on the next button even if there was no page at the next index.