Rollup merge of #130619 - GuillaumeGomez:scraped-examples-height, r=n…

…otriddle

Fix scraped examples height

Fixes [#130562](rust-lang/rust#130562).

You can test it [here](https://rustdoc.crud.net/imperio/scraped-examples-height/doc/scrape_examples/fn.test_many.html).

I also used this opportunity to reduce the padding on line numbers:

| before | after |
| - | - |
| ![Screenshot from 2024-09-20 16-20-40](https://github.com/user-attachments/assets/9434704c-afe0-4ec3-a1dc-6f3c16d03b3b) | ![Screenshot from 2024-09-20 16-20-13](https://github.com/user-attachments/assets/f3bd01bf-760a-4acd-ba34-8e7db083245a) |

r? `@notriddle`