Ruby : add content for debugging ruby using vscode rdbg extension

[XAJX179]

Because

gaps in the current debug content.

This PR

adds a custom section heading with content on debugging with vscode-rdbg.

Issue

Closes #30210

Additional Information

Pull Request Requirements

• [x] I have thoroughly read and understand The Odin Project curriculum contributing guide
• [x] The title of this PR follows the location of change: brief description of change format, e.g. Intro to HTML and CSS lesson: Fix link text
• [x] The Because section summarizes the reason for this PR
• [x] The This PR section has a bullet point list describing the changes in this PR
• [x] If this PR addresses an open issue, it is linked in the Issue section
• [x] If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• [x] If any lesson files are included in this PR, they follow the Layout Style Guide

[XAJX179]

This is a big change--nearly 200 lines. Not necessarily a "bad" thing, it just makes me think that maybe we should go ahead and pull all stuff related to VSCode debugging into a new lesson. Can call it something like debugging_with_vscode. This was already the plan with #24994 anyway.

How does that sound? @XAJX179

Also going to suggest some other edits, mostly related to just nitpicky English things. I'll probably have more to add later as I need to sit with the lesson and run it through the lesson preview tool, but this will give you some work to do for now.

Sounds good! moved the content into it's own lesson.

One thing left to do is updating image links after PR for images gets merged.

Also since this is my first time adding a new lesson, i will have a look at the contributing guide tommorrow.