victory-native: Consider using core packages instead of `victory-<name>/es`

[ryan-roemer]

We presently do something like:

import { VictoryArea } from "victory-area/es";

in victory-native so that we know we point to transpiled source with ESM. This means, however, for things like Jest tests we have to transpile the already transpiled other victory-<name>/es files.

Task:

• [ ] Investigate if we can switch over to like import { VictoryArea } from "victory-area"; and not transpile further in Jest.
• [ ] Update jest-native-config.js to only transpile in /test/ in transform setting.