nextcloud
Make sync worker run less frequently when auto upload folder requirements are not met
The sync background worker is currently running regularly in the background and scanning the file system for changed files. As some people point out (e.g. https://github.com/nextcloud/android/issues/13008) that is sometimes not wanted when the requirements for the autoupload folder (e.g. only upload in Wi-Fi) are not met since it drains the Akku. The problem here is that the scanning should still take place to be able to have a current and up-to-date upload queue, where the changed files are listed. To produce a compromise, we could simply make the interval between file system scans larger when the requirements are not met. So for example when the mobile phone is not connected to unmetered Wi-Fi run the background worker only every 1h and not every 15 min.
