feature: Allow a way to embed canva slides to the platform

[hkirat]

Some slides are canva slides
For eg - https://www.canva.com/design/DAGVOvVE1ow/wTKvuP2OnyLuvr4aAwtM-A/edit?utm_content=DAGVOvVE1ow&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton

We need to allow admins to upload this link and it should unfurl as slides on the platform

[Jatin24062005]

@hkirat i m begginer i just wanted to know you need that slides in your video description directly or something else feature ??

[saurabhraghuvanshii]

@hkirat assign/

[ItsFlash10]

@hkirat - #695: UI might not be the best but does the job ig xD

addCanvaEmbed.mp4