Docs: Angular-props Use component param from the story return

[CodeByAlex]

Is your feature request related to a problem? Please describe.
The adoption of angular props with docs would be a lot easier if we didn't have to specify the component twice in the stories file. The docs suggest adding "component: ComponentName" as a param: https://github.com/storybookjs/storybook/tree/next/addons/docs/angular. Would it be possible to us the component returned in the JSON of the story:

export const story = () => {
return {
template: <tag></tag>,
component: TagComponent, <----
};
};

Are you able to assist bring the feature to reality?
no

[shilman]

Closing as dupe to #8673