Better difference for code differences

[LousyBook-01]

Validations

• [X] I believe this is a way to improve. I'll try to join the Continue Discord for questions
• [ ] I'm not able to find an open issue that requests the same enhancement

Problem

When you import a code snippet to the full code, it shows all the removed and added code parts. I think if you use the one that github uses, like it only shows the parts which were added, changed and removed, with different colors

Solution

use the code difference one that github uses, like it only shows the parts which were added, changed and removed, with different colors