User Story: Filter posts

[Dym077]

As a logged in user I can view posts filtered by other users so that I can be updated about their activities

***Acceptance Criteria

• [x] Filter function
• [x] Activities feed visible when logged in
• [x] Feed showing accurate content, based on users being followed

[Dym077]

• This currently work with the user typing in name of the desired post or profile. This also has to work with artist and artwork.