Vimeo and Dailymotion video editable fix

What was the issue? 

When getting the video data from Vimeo or Dailymotion, there was a check to see if data in subarray is array before accessing its data. But the problem was that there wasn’t any check to see if that subarray even exists.

How did you solve it? 

I needed to add a check to see if the subarray, which data we are trying to access, even exists.

Why is this fix important?

It's important because users can now add videos from Vimeo and Dailymotion without any errors.

How does it feel to contribute to a platform such as Pimcore? 

To know that I helped in the development of something on this scale is amazing.

And if you want to check out this pull request, just follow the link!