Allow Persistent Background Media Sync

Originally posted here:

https://forums.launchbox-app.com/topic/89170-android-feature-requests-background-media-sync-and-multiple-platform-importing/ and reposted to allow priority posting.

I think it would be better to have persistent background downloading of images videos. Currently what I have to do is change my phone/device screen timeout to 30 minutes and not use my device for the time it takes to update all of the media from each platform. This is massively time consuming for both small and large libraries.

With the Launchbox competitor 'Beacon' (not as good as Launchbox), they have a persistent background service that keeps on working even when a different app is being used. This would be a great addition for Launchbox to keep it in memory whilst other phone stuff is being used:

Please vote if you’d want to see this added in Android.