Initial application state

We'll start refactoring our application by thinking about the initial state of it. This will help us figure out how to break the whole state down into parts that can be mutated individually. We'll also add a new feature to this version of the app that allows the user to add new episodes. Here's what this part of the UI looks like:

Another new feature that we'll add to this version of the app is displaying the number of results beside the header:

As the filter controls change, and as new episodes are added, this number ...

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