feat: FollowerList [1741]

Created by: Tirokk

Authored by rbeer Mar 19, 2020 Merged Apr 20, 2020

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🍰 Pullrequest

This

• extracts follower/-edBy lists from _id/_slug page into own feature component FollowerList
• turns info text about number of more connections into button
• adds fetching of all remaining connections
• adds filtering of the list when remaining connections have been fetched

Issues

• fixes #1741 (closed)

Todo

• Turn list of <user-teaser>s into overflow container
• Add filter <input> and logic
• integration tests