Fix for new Canvas URL formats

[michaelgira23]

After grabbing a random user's URLs, I've gotten this error:

Which steps from the url field in the canvasFeeds collection to be formatted like so: {"params": {"VALUE": "URI"}, "val": "https://micds.instructure.com/calendar?include_contexts=..."}

This fix will first check if the URL is a string, and if not, use url.val

[michaelgira23]

I literally don't care anymore