Change rabbit hole behavior settings configurations

Problem/Motivation

There are a couple of issues in Rabbit Hole configuration objects, that I'd like to fix:

1) We can store the entity type id (e.g. node) instead of the name of entity type config entity e.g.(node_type);
2) We can use properties targetEntityType and bundle to make it consistent with core configurations;
3) We can update the name and ID to make it shorter;

We'll make sure there is an update hook to update existing configurations.