Redux-React Basic Tutorial issues

[cniemann88]

Not quiet sure where else to put this.

For the Basic Tutorial https://react-redux.js.org/introduction/basic-tutorial there are 3 issues.

Issue 1: The Sandbox Code: https://codesandbox.io/s/6vwyqrpqk3 uses react: 16.4.2, but needs at least 16.8.4 because of .memo()

Issue 2: The tutorial implements the connection for the VisibilityFilters, but it omits setting the filters
const VisibilityFilters = ({ activeFilter, setFilter }) => {

<span
key={`visibility-filter-${currentFilter}`}
className={cx(
  "filter",
  currentFilter === activeFilter && "filter--active"
)}
onClick={() => {} /** waiting for setFilter handler*/} <------this should be mentioned in the Tutorial, or filled in
>
{currentFilter}
</span>

Issue 3: Similar to issue 2, the tutorial doesnt implement the toggleTodo() in Todo.js.

Thanks!

[markerikson]

The tutorial really needs to be rewritten anyway, to show use of hooks instead of class components and connect.

Right now the best tutorial is actually in the Redux core docs "Fundamentals" tutorial:

https://redux.js.org/tutorials/fundamentals/part-5-ui-react

Refs: #1574, #1575 .