fix: issue with end_idx inferring int type from variant type

[CaelRowley]

var types cannot be inferred using := from variant types so I used mini instead of min to correctly return an int type

[CaelRowley]

@Ark2000 this is a tiny fix, should be easy to merge. If there is an specific way you'd like MR's please let me know as I would love to contribute to your project. I can have a look at the open issues and roadmap in the future, this is more of a tiny fix to test your process

[worron]

Sorry for delay, thank you for contribution.