Docs: light mode code snippets have very low contrast

Created by: teaca-sebastian

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

The title describes the issue well enough. It happened that I had light mode on, and this one JS snippet I've come across really made me squeeze my eyes because it was hard to distinguish the comments from actual code. Although dark mode has really nice contrast, some people might prefer lightmode.

Reduced test cases

Any snippet on light mode, including HTML and CSS.

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome

What version of Bootstrap are you using?

v5.3