Override parent props

[JakeSidSmith]

By reordering the precedence of the store vs parent props we allow users to pass initial props from the parent, and override them with setProps.

<Counter count={INITIAL_VALUE} />

function getInitialProps ({ count }: OwnProps) {
  return {
    count
  };
}

this.props.setProps({
  count: count + 1
});

This PR additionally pins & updates our tsconfig.