Refactor feature package structure

app/src/main/java/com/futo/circles/di/DataSourceModule.kt

app/src/main/java/com/futo/circles/di/UiModule.kt

...rcles/feature/group_invite/InviteMembersDialogFragment.kt

...to/circles/feature/group_invite/InviteMembersViewModel.kt

...ature/group_invite/data_source/InviteMembersDataSource.kt

...o/circles/feature/group_timeline/GroupTimelineFragment.kt

.../circles/feature/group_timeline/GroupTimelineViewModel.kt

...eature/group_timeline/data_source/GroupTimelineBuilder.kt

...ure/group_timeline/data_source/GroupTimelineDatasource.kt

...rcles/feature/group_timeline/list/GroupTimelineAdapter.kt

...es/feature/group_timeline/list/GroupTimelineViewHolder.kt

app/src/main/res/navigation/groups_nav_graph.xml