Consider migrating redux code to redux toolkit

[acelaya]

One of the problems in redux is the amount of boilerplate you potentially need.

One way to reduce that would be migrating to @reduxjs/toolkit, which comes with some tools to simplify that and it's currently considered the official way to "do" redux: https://redux.js.org/introduction/why-rtk-is-redux-today

Pros:

• Reduce boilerplate code.
• Get rid of custom helper functions which replicate some RTK built-ins.

Cons:

• Might be harder to inject dependencies in action creators.
• Actions might require the payload prop (to be confirmed).