🚀 [Feature] Filter: Posts from my groups

Created by: ulfgebhardt

🚀 Feature

Filter: Posts from my groups

Allow a filter to filter by only posts from my groups.

Second stage of this would be an automatic filteroption for each group i am member of, so I can select which group posts I want to see more granulary.

• Allow to see only posts of my groups (introduce group filter with all my groups)
• Individual Group filters for each group I am member of
• Negated filter - only not from group

Implementing the first part is sufficient for this Issue, but followup issues must be created