Title: Add anchor to HTML source lines and improve the design
Author: rodarima
Created: Wed, 10 Jul 2024 20:12:15 +0000
State: closed

Adds a line anchor so we can make hyperlinks to an specific line.

Additionally improves a bit the design of the line number colors:

Here is the old style:
![line-numbers-old](https://github.com/dillo-browser/dillo/assets/3866127/14c173c1-cf5e-4eaa-85c9-342f34713240)

And new:
![line-numbers-new](https://github.com/dillo-browser/dillo/assets/3866127/0445f098-200b-48d6-8141-8cc014dff06b)