Add items to news feeds as they are received.

Summary: Timer was too short sometimes and nothing was returned this will now add items to news feeds as they are received.

Reviewers: laysrodrigues, tcanabrava, patrickelectric

Reviewed By: laysrodrigues, tcanabrava

Subscribers: Atelier: General Development

Tags: Atelier: General Development

Differential Revision: https://phabricator.kde.org/D16597