Support reddit /s/ links

[HeeroWingZero]

The reddit mobile app now gives links in a different format from the standard website. Going to use post #6653505 as an example.

The following link is the standard link from the website on browser: https://www.reddit.com/r/azudaioh/comments/1690zr7/besties_oc/
Putting this link into the bookmarklet or the upload page works as expected and will give the duplicate notification.

The following link is for the same post, but copied from the share function in the reddit mobile app: https://reddit.com/r/azudaioh/s/sANr7sokQ3
The upload page doesn't recognize this format and gives a "doesn't contain any images" error when you paste it.