Git-ignore hugo_stats.json

[salim-b]

Summary

File is overwritten during each build and not supposed to be edited by hand.

Checks

• Read Create a Pull Request
• Supports all screen sizes (if relevant)
• Supports both light and dark mode (if relevant)
• Passes npm run test

[salim-b]

DO NOT MERGE! I noticed it makes Netlify purge all styles, i.e. not taking hugo_stats.json into account anymore 😐 I have to further investigate...