feat: update export statistics with new user data and extended date range for graphs

Regenerate export files (dataset, statistics, mentions) with 146 active users and 4778 total contributions, reflecting new user activity and updated rankings. Add new comments-per-day, comments-per-hour, and comments-per-weekday graphs covering the period from 2024-11-07 to 2024-12-06, and remove the old dataset.txt file.

export/rants-kobenz.txt

@@ -1,3 +1,3 @@
 kobenz said hey, I may have broken this one. It went on forever, poor thing,starting out with a couple  coroutines to spare is literally the worst bad habit I've got from golang and that's a compliment. rust, for example, got my over engineering OCD thru the roof!,Functional programming in a one liner:
 
-const value = (define_value, start) => value(define_value(start))```
+const value = (define_value, start) => value(define_value(start)),I'm not joking when I say how dumb I am. Like, for example, yesterday, me and a friend had to figure out how much is 15×6. He did it by doing 10×6 + 5×6, that's 2 "×"s and a single "+", dead simple, right? Yep. Me?  I did it 5×3×3×2... Which, ok, is 9×10, but do you think I can do 9×10? Nope,  to me 9×10 is the result 🤌🏻 that's how much of a door knob I am```