[C-296] Repository traffic data

[C-225] Add two Slack workspaces

[C-275] Support string search in the Twitter integration

[C-228] Organizations: remove "# of activities" filter from "new & active" tab

[C-113] Build a notifications system

Organization cache simplify enrichment

[C-116] Properly exclude team members

[C-19] Display markdown for activities

Organizations module

Twitter integration keeps disconnecting