freeflow twin release 0.10

[despiegk]

checks

• [ ] good enough viewers/editors in quantum
  • [ ] pdf viewer embedded (new tab, as well as integrated (which means inside the working space))
  • [ ] text formats (code, md, ...) with editor if possible, worst case better viewer (integrated)
  • [ ] office docs editor (only full screen)
  • [ ] video viewer, with streaming support, no need to fully download (separate tab, integrated)
  • [ ] audio listener (separate tab, integrated)
  • [ ] photo viewer / gallery if directory (separate tab, integrated)

TODO: complete