issue: https://linear.app/comm/issue/ENG-4680/refactor-useservercall
We need to refactor `useServerCall` function (lib/utils/action-utils.js). Before there was only one keyserver, but as we move into multikeyserver world, an action might want to call one specific keyserver, or all of them. For each action we will thus have to define an object of type
```
export type KeyserverCall<Args: $ReadOnlyArray<mixed>, Return> = {
+actionFunc: ActionFunc<Args, Return>,
+config:
| { +keyserverSelection: 'fanout' }
| {
+keyserverSelection: 'specific',
+keyserverIDExtractor: (...Args) => string,
},
};
```
Where "fanout" means that we call all keyservers, and keyserverIDExtractor is a function that can extract keyserver id from actions arguments.
We cannot completly remove `useServerCall` function yet, because we would first need to create such objects for all actions. So for now I'm creating `useKeyserverCall` alongside `useServerCall` (the name is supposed to be changed
anyway).
In `useServerCall` implementation memoization was done using a combination of `_memoize`, `createSelector` and `useMemo`. I will do this in the next diff, and provide an explanation of what it does exactly. Thats why
`createBoundServerCallsSelector` is omitted for now.
See test plan for example of usage