Implement auto refresh of items on the frontend

[campb303]

At the moment, the data in the ItemTable only loads when the App component is rendered which is equivalent to a full page refresh. This data should be refreshed after a fixed amount of time.

[campb303]

This depends on #123

[campb303]

This does not depends on #123 and can be implemented with a timer function being attached to the ItemTable data fetch.

[campb303]

A significant refactoring of webqueue2 needs to take place to allow for compassable components which allow state to be managed in a singular location and reduces re-renders/updates. Updating the data of the ItemTable cannot happen right now without causing significant re-rendering issues. However, if/when the composition refactoring happens, below is a sketch for a design of how to implement an auto refresh action in the UI:

[campb303]

A timer function should be added as a useEffect callback in the component that fetches the table data.

[campb303]

A setTimeout can be called inside a useEffect as long as a function to clear the timeout is returned:

useEffect(
  const timer = setTimeout(() => console.log("Hello, World!"), 3000);
  return () => clearTimeout(timer);
);

[campb303]

Added in #227