🚀 [Feature] Update follow/unfollow mutation to return user

Created by: Tirokk

Authored by vbelolapotkov Sep 14, 2019 Closed Dec 19, 2019

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🚀 Feature

The feature relates to #293 (closed) . To make it right a server should return an updated user object with proper followedByCount

Additional context

Use case:

1. User A clicks 'Follow/unfollow' button in popup of the other user (User B)
2. Follow button state should change (as it is now) and followers count for User B should be updated.

Current solution drawbacks:

1. If the button is used on a user B page, then followedByCount number has glitches.

2. The current solution only makes an increase/decrease of the followedByCount by 1 which is fine for the optimistic update but might be incorrect (other users can follow/unfollow the user at the same time => this info will not appear until next page reload).