Compilation errors with G++ 15.2.1

[tyrylu]

There's quite a lot of type mismatch errors between long and long long when compiling with g++ 15.2.1, and maybe others (did not fix all these to see the rest).
Also, there's a missing use of scraper::node in html_to_text.rs in commit bcfd7e4.

[trypsynth]

Hi there,
Yes, I noticed the scraper issue, I just haven't had the energy after my job yet this week to fix it. I'm not sure on the GCC problems, I'll try building paperback on Linux later today and see.

[tyrylu]

The rust error is a simple use scraper::node; the C++ fixes will be more involved, it seems.