Instead we're going to move back to standard exceptions.
Using a custom Result class has created far far more problems
- The Stacktraces aren't always right
- Sometimes one forgets to check the Result error
- All other exception throwing code needing to be converted to Results
- Non idiomatic Dart code
I think it's better to just go back to exceptions. They have their
problems, but overall, I think it's a better approach.
The idea is for every screen and combination of parameters to be
represented in WidgetBook. This way, it'll be easy to see what all
different screens are available.
Also, building new themes will also be much easier.
