Support larger ranges for longs

[fwdekker]

As suggested by @solonovamax, ranges for longs are currently restricted to the size of a long, which prevents users from setting the range to be any long. The size of the range of longs should be unlimited.

[solonovamax]

I was originally going to make a separate issue for it, but I instead decided that it's closely enough related to this, that I'll put it here:
If you set the minimum to 0 and the maximum to 9,223,372,036,854,775,807 (very specifically. If you go 1 higher it overflows, 1 lower it doesn't work.) then it will "accept" it (ie: won't create the dialogue saying it's out of bounds), but will never generate anything.
Even pressing "refresh" in the settings menu won't generate new numbers.

[fwdekker]

I've created a separate bug report for the issue, because a minimal fix for that bug does not solve this issue.

[solonovamax]

I've created a separate bug report for the issue, because a minimal fix for that bug does not solve this issue.

yeah, I just thought I should mention it since (afaik) they're both caused by the same thing. So if you fix this issue, it fixes the other one.

[fwdekker]

Not the same fix, but the fixes were closely related.