Update journey step node labels

Description -

Why is this feature important to you - currently we are seeing certain journey steps show up either multiple times or blank when we are querying for journey steps in a journey run and for more accurate reporting methods it would be great if this feature can be updated as it didn't use to be like this

How would you like the feature to work - ideally features like a wait time should only show up once in a step event and the timeout branch should behave just like how any other node does.

Current Behavior - As of now a wait time shows up twice when querying for journey step events (once for wait start and once for wait end) and time outs on an audience qualification have an additional blank node show up in step events for no reason.