Changelog for the upcomming release (preview)

Changes

• Migration to Vue 3 and Pinia

What's Changed

🚀 Enhancements

• reactivate in app activities by @dartcafe in #3911
• Changes to user menu by @dartcafe in #3913
• Add restricted owners by @dartcafe in #3923
• Rework of the polls list by @dartcafe in #3927

🐛 Fixed bugs

• fix dashboard links by @dartcafe in #3912
• fix ocs api routes by @dartcafe in #3922

Other Changes

• fix actions by @dartcafe in #3916
• keep Container abstraction by @dartcafe in #3925

Full Changelog: v8.0.0-alpha13...v8.0.0-alpha14