Did activity feed

[olemp]

Idea for future

What about an did activity feed? We can start of by adding the possibility to promote your work by tagging your event somehow (not sure how yet). Maybe hashtags?

The activity feed could be shown on the frontpage. but also the endpoint will be in our GraphQL API, so it can be retrieved in other apps and sources too.

An example showing what @damsleth and @pettersh worked on (in an SPFx webpart):