v2 improve upload of captures

[sebastiangaertner]

We are just experiencing the case where about 3000 captures are on the phone and 1700 still needed to be uploaded. This process even though the internet connection is pretty solid takes too long and is likely to be interrupted due to no indication of an uploading process going on. @Elforama is there a mechanism in place that the packs get uploaded in increments? I thought we had 50 leaving at a time or? Does the iOS have this functionality?