200 - Certain Lectures not working

[bexeGrace]

Closes #200

[bexeGrace]

As it can be seen from the image, the data fetsched from the database contain some youtube_id fileds that have invalid (probably duplicated the name of the video to youtube_id field) values. This is what preventing the videos from being played correctly. Thus I suggest that updating the data would solve the problem. But additionally for the future creations of lectures, I suggested that validating the youtube_id field during creation would prevent storing of invalid links to the youtube_id field. I would like to know what you think about it...

[MAbdurrehman1]

I don't think we need to do this now.
Let's communicate to the team that we need to enter correct youtube IDs.

and if this happens too much then we can add some sort of validation.
So closing this PR