Enable Sandboxing

[Mcrich23]

for VideoPaper is to set it in a way that allows for the app to be sandboxed. In addition to further user safety, it also makes this possible to distribute on the app store!A goal I have

[MattHeaney23]

I'm happy to be assigned to this!

[MattHeaney23]

As discussed, might be worth removing me as the assignee for this one please, to free to up for anyone else who wants to have a look