adjust tests, as logic is changed

Implement LoadMore, Use Maybe in DataStore

chore: use switchMap, to elegantly handle double tap/click

chore: replace manual fragment transaction with Arch Navigation

feat: Solve LiveData Observing issue, use instead of Fragment instance

Implement pinch-zoom with MikeOrtiz/TouchImageView

migrate whole project to gradle kotlin dsl (build.gradle.kts)

migrate to RxBinding

Completed BottomSheet in ApodDetails

correct formatting - fragment_apod_detail, set hidable_behavior to false

gradle version updated

WIP: Apod Details

make ApdListViewModel singleton, so that once ApdListViewModelFactory creates an instance of ViewModel, it'll return the same instance every time

fix lint

Implement image loading / showing in apodlist