Resolve "Add vue component demos to PJs Path page"

What does this MR do?

Closes #630 (closed)

Adds vue component examples from Storybook to Path page.

Does this MR meet the acceptance criteria?

• Add a description to this MR explaining the reasons for the proposed change, per [say-why-not-just-what][transparency]
• Include MR scope that reflects the purpose of the change in the description
• Assign it to a reviewer. All GitLab designers are [reviewers][design-reviewer], but you can also assign it directly to a [maintainer or trainee maintainer][pajamas-assignments]
• Apply the correct component label(s)
• Select a milestone or due date

/label Pajamas