Deprecate the `RootState` generic of `createFeatureSelector`

[timdeschryver]

Describe any alternatives/workarounds you're currently using

Deprecate the State generic of createFeatureSelector because it's causing type issues with Store.
For this, we can also add an automatic migration.

BEFORE:

createFeatureSelector<State, FeatureA>('featureA');

AFTER:

createFeatureSelector<FeatureA>('featureA');

If accepted, I would be willing to submit a PR for this feature

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[ ] No

[santoshyadavdev]

Hey @timdeschryver is this open, can I take this one .

[timdeschryver]

Go for it Santosh!
Thanks in advance.

[bryantlikes]

Seems like createFeature should also be updated to not use this version of createFeatureSelector?

platform/modules/store/src/feature_creator.ts

Line 101 in a6fe92d

const featureSelector = createFeatureSelector<AppState, FeatureState>(name);

[sod]

Doesn't this change render the generic of Store useless, because it's not validated anymore anyway?