All versions of Do Not Disturb Toggle

- upgraded from API23 to API28 - using FILTER_PRIORITY instead of FILTER_ALARMS - toggling DND will not interfere with filter priority settings Newer android versions had strange behavior like Huawei P20 pro (reset "Allow interruptions" when opening DND settings) or Nexus emulator (DND grayed out). App should leave settings intact and user can change priority settings when DND mode is turned on. Hope this release will resolve problems and toggling DND will work as it was initially intended.