v1.3.0

Changes

• For useReducer, emit a 'dispatch' trace when dispatch gets called, rather than an 'action' trace when reduction starts.
• useTracer now returns a stable TracePanel that won't remount on each render.
• Throw an error when useTracer is not the first hook function called in a traced component.
• Fix warning and possible crash when a traced ref is mutated during a render.
• Custom show functions do not need to be stable anymore.
• Clean up demo styles.