🪩 Provide a link to the proposed addition

https://github.com/Slllava/gridfy
https://gridfy.astroon.pro/

😳 Explain why it should be added

Grid Calculator. Calculating column and page widths. (Open source app)

📖 Additional context

🧨 Issue Checklist

• I have checked for other similar issues
• I have explained why this change is important
• I have added necessary documentation (if appropriate)