Chunk and Flavor deletion #97
Description
figure out how to delete chunks and all connected resources. this is tricky, because if there are currently instances running a chunk that should be deleted, we cannot delete the entry from the database.
one option is to mark the chunk as deleted and block every new interaction with it. when the last instance refering to the chunk is gone -> delete it permanently. restoring a deleted chunk should not be possible. if it's gone, it's gone.