[desktop][tw] Implement remote desktop cases on Tumbleweed for xvnc/tigervnc.
We have cases for the coverage of xvnc/tigervnc, and it would be a good thing
to migrate them to Tumbleweed. The related cases are:
- Priority changed from High to Normal
This ticket was set to "High" priority but was not updated within 120 days which is 4 times the period of the SLO for "High" tickets (30 days) as described on https://progress.opensuse.org/projects/openqatests/wiki/Wiki#SLOs-service-level-objectives . The ticket will be set to the next lower priority of "Normal".