Oh! No worries, everyone on this forum is either seeking answers or providing one!
Since you JUST submitted your spousal sponsorship inland application, it might take a couple months before you receive your AOR. To maintain status it's important that you submit your visitor extension application asap (and not wait so long that you have to submit a restoration one later!). Hopefully you are not missing any documents for your PR application and it will be accepted for processing.
I think this is the best course of action since it is highly encouraged to maintain legal status at all times (even in spousal PR inland cases)- so that you won't have complications with your OWP application. In short, IRCC won't grant your partner an OWP unless they have legal status by the time IRCC gets to their application- submitting a visitor restoration gives your partner's OWP application a higher chance to succeed.
And yes you only need to submit 1 digital photo for the online application.