Foundations -> DOM Manipulation: Replace href link on knowledge check bullet point

[Long-Hold]

Because

The respective knowledge check question linked to a resource that is no longer used.
This PR replaces the href with a new link and also updates its wording so it is an actual question.

This PR

• Replaced the href for "Explain the difference between "capture" and "bubbling"."
• Original link "https://www.youtube.com/watch?v=F1anRyL37lE" replaced with "https://www.javascripttutorial.net/javascript-dom/javascript-events/#:~:text=DOM%20Level%202%20Event%20flow"
• Changed the wording to be phrased as a question.

Issue

Closes #30945

Additional Information

Pull Request Requirements

• I have thoroughly read and understand The Odin Project curriculum contributing guide
• 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
• The Because section summarizes the reason for this PR
• The This PR section has a bullet point list describing the changes in this PR
• If this PR addresses an open issue, it is linked in the Issue section
• If any lesson files are included in this PR, they have been previewed with the Markdown preview tool to ensure it is formatted correctly
• If any lesson files are included in this PR, they follow the Layout Style Guide