docker: Fix container list alignment
docker: Fix container list alignment

Increase the padding to align containers and header button.

Fixes #3489
Closes #3870
Closes #3877
Reviewed-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>

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