🍰 Send out notifications on CreateComment

Created by: Tirokk

Authored by Tirokk Jul 10, 2019 Merged Aug 20, 2019

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🍰 Pullrequest

Implement notifications in Comments.

Issues

• fixes #1017 (closed)

Todo

• avoid Hashtags in Comments
• extract and save notifications to the database
• implement click on Comment notification and go to the Comment
• implement Frontend tests
• implement Backend tests