chore(common): Update virtual classroom links

[ntacheva]

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[github-actions]

Hello @ntacheva,

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[yordan-mitev]

The article has two more links leading to YouTube videos that we should replace (in the Course Overview and Project Overview sections). These videos were serving as promotional teasers when we used another learning platform. My suggestion is to update these video links as well because they aren't part of the current course playlist.

[ntacheva]

The article has two more links leading to YouTube videos that we should replace (in the Course Overview and Project Overview sections). These videos were serving as promotional teasers when we used another learning platform. My suggestion is to update these video links as well because they aren't part of the current course playlist.

We can still leave the embedded teasers, so the clients can see the overview of the course. We can link the course playlist from their description, so it is easily accessible.

[github-actions]

Here you are the link to your PR to production: 2557