chore: remove multiple empty trailing newlines

[nyurik]

Some IDEs auto-fix these, and ensure there is at least one, so easier to keep them clean-ish in the repo with a single commit

To find it, i used these two commands with ripgrep:

rg -l -U '[^\n]\z' --type txt -g '!**vendor**'
rg -l -U '\n\n\z' --type txt -g '!**vendor**'

[github-actions]

Bloaty Results (iOS) 🐋

Compared to main

    FILE SIZE        VM SIZE    
 --------------  -------------- 
  [ = ]       0  [ = ]       0    TOTAL

Full report: https://maplibre-native.s3.eu-central-1.amazonaws.com/bloaty-results-ios/pr-3174-compared-to-main.txt

[louwers]

Let's fix all then and add it to CI #3176