Corrects the tasks-provider interaction end to end (see 47cf99a). Merged as
step 1 of the storage-and-sync sequence in docs/STORAGE-AND-SYNC.md: it touches
the same permission flow that the :provider vendoring is about to change, so it
lands first.
The floret-kit submodule pointer keeps main's e047a2b, which already contains
the branch's 396e538.
# Conflicts:
# app/src/main/java/de/jeanlucmakiola/agendula/ui/detail/TaskDetailScreen.kt
Jean-Luc Makiola
3d54a896ce