Enhanced build repeat

## Describe your suggestion
would be nice if we could set an limit to how many times buildrepeat repeats building

## Settings
if you only do buildrepeat 0,0,1 or something simmilar nothing changes and it repeats as many times as possible but if you would do #buildrepeat 0,0,1 50 it would repeat it 50 times

## Context
The change would be really handy, easy to implement and have no downsides

I have not used any OwO's or UwU's in this issue.

The issue requests an optional repeat-count argument for the buildrepeat command. Start by locating the command's implementation and its argument parsing, then check whether existing command tests cover buildrepeat. Done means the current syntax remains unchanged while a trailing count limits repetitions to the requested number.

Written by the indexing model from the issue text.