machines: error message for a VM is formated better
machines: error message for a VM is formated better

The error message is better alligned with the rest of properties
on the Overview tab.

Closes #6011
Reviewed-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>

martinpitt/cockpit,SotolitoLabs/cockpit,petervo/cockpit,Scribery/cockpit,petervo/cockpit,mareklibra/cockpit,SotolitoLabs/cockpit,harishanand95/cockpit,harishanand95/cockpit,mvollmer/cockpit,Scribery/cockpit,larskarlitski/cockpit,mareklibra/cockpit,michalskrivanek/cockpit,dperpeet/cockpit,dperpeet/cockpit,xhad/cockpit,cockpit-project/cockpit,larsu/cockpit,larsu/cockpit,stefwalter/cockpit,cockpit-project/cockpit,harishanand95/cockpit,michalskrivanek/cockpit,deryni/cockpit,garrett/cockpit,michalskrivanek/cockpit,larskarlitski/cockpit,deryni/cockpit,harishanand95/cockpit,cockpit-project/cockpit,larsu/cockpit,dperpeet/cockpit,petervo/cockpit,mareklibra/cockpit,SotolitoLabs/cockpit,SotolitoLabs/cockpit,Scribery/cockpit,stefwalter/cockpit,mareklibra/cockpit,harishanand95/cockpit,cockpituous/cockpit,mvollmer/cockpit,cockpituous/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,cockpituous/cockpit,xhad/cockpit,dperpeet/cockpit,michalskrivanek/cockpit,andreasn/cockpit,petervo/cockpit,dperpeet/cockpit,larskarlitski/cockpit,Scribery/cockpit,stefwalter/cockpit,michalskrivanek/cockpit,stefwalter/cockpit,cockpit-project/cockpit,mvollmer/cockpit,xhad/cockpit,larskarlitski/cockpit,larsu/cockpit,harishanand95/cockpit,martinpitt/cockpit,cockpituous/cockpit,martinpitt/cockpit,xhad/cockpit,stefwalter/cockpit,xhad/cockpit,Scribery/cockpit,xhad/cockpit,martinpitt/cockpit,deryni/cockpit,dperpeet/cockpit,michalskrivanek/cockpit,petervo/cockpit,moraleslazaro/cockpit,mareklibra/cockpit,garrett/cockpit,harishanand95/cockpit,garrett/cockpit,stefwalter/cockpit,mvollmer/cockpit,andreasn/cockpit,dperpeet/cockpit,martinpitt/cockpit,mareklibra/cockpit,xhad/cockpit,larskarlitski/cockpit,andreasn/cockpit,larsu/cockpit,mvollmer/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,deryni/cockpit,andreasn/cockpit,andreasn/cockpit,stefwalter/cockpit,SotolitoLabs/cockpit,larsu/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,cockpituous/cockpit,deryni/cockpit,Scribery/cockpit,garrett/cockpit,andreasn/cockpit,andreasn/cockpit,petervo/cockpit,moraleslazaro/cockpit,deryni/cockpit,garrett/cockpit,deryni/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,petervo/cockpit,moraleslazaro/cockpit,Scribery/cockpit,moraleslazaro/cockpit,michalskrivanek/cockpit