fix: run and await app config sync on IO dispatcher [WPB-15730]#4009

MohamadJaara merged 5 commits intodevelopwireapp/wire-android:developfrom

fix/start-and-await-sync-job-on-io-dispatcherwireapp/wire-android:fix/start-and-await-sync-job-on-io-dispatcherCopy head branch name to clipboard