Upgrade RTK to v2 (#44339)

* Upgrade @reduxjs/toolkit from ^1.9.3 to ^2.2.5

* Fix typing

* Upgrade redux-actions and @types/redux-actions

* Fix type errors

* Fix type errors

* Upgrade react-redux from ^8.0.5 to ^9.1.2
- remove @types/react-redux as it's no-longer-needed

* Upgrade redux-promise from ^0.5.0 to ^0.6.0
- upgrade @types/redux-promise

* Remove unused @types/redux-logger

* Revert "Upgrade redux-actions and @types/redux-actions"

This reverts commit 65005a00.

* Remove createWeakSelector as weakMapMemoize is the default memoization strategy now

* Do not call unsubscribe if it does not exist

* Do not subscribe

* Remove console.log

* Make DelayedLoadingSpinner always render something with data-testid="spinner" so that tests can be aware of when things are loading

* Fix JoinStep unit tests

* Fix AddToDashSelectDashModal unit tests

* Fix SegmentApp unit tests

* Bring back original subscription logic

* Fix DataUsageStep unit tests

* Fix ManageApiKeys unit tests

* Simplify comment

* Fix MainNavbar unit tests

* Fix HomeRecentSection unit tests

* Use afterEach instead of afterAll to reset mocks

* Remove explanatory variable