Fix hint in answer breaking markdown content

[christophblessing]

Description

This PR fixes the hint if the user answered a question correctly in answer breaking markdown content.

If you put a block of code in the markdown content, it will be strangely formatted after answering a question because we append - text to it.

Before

After

Decisions / Choices I made

I decided to fix it by adding a separate paragraph instead of appending the text to the content.
This way we don't change the content of the Markdown component.

Additionally, I think it made sense to also change the wording in the locales and right align it.
Input on the styling is appreciated.

Closes #46

Checklist

• All checks pass successfully
• All related commits are squashed together
• The code follows the project's coding standards
• The changes are properly documented / the relevant documentation is updated (if applicable)
• Appropriate labels are added to this pull request