Use the ClientSchedule data structure for deserialising and tracking
edit state on the client instead of trying to directly deal with the
ApiSchedule type which is not build for ease of edits or rendering.
Write the logic of keeping track of location modifications and applying
updates from the server into the ClientSchedule class. This should
serve as the foundation for replacing the prototype in-component update
logic which have turned into an unmaintainable spagetti.
