Use https://lab.nexedi.com/nexedi/slapos.core/merge_requests/265 to run slapos in a controlled services.
Enable bash-completions so that we can benefit from existing completions and generate fish completions using https://lab.nexedi.com/nexedi/slapos.core/merge_requests/253
Apply a workaround for segmentation faults when exiting theia-open
Update to 1.8.0 https://github.com/eclipse-theia/theia/blob/v1.8.0/CHANGELOG.md#v180---26112020