base1: Add CSS for dialog section headings
base1: Add CSS for dialog section headings

This works with .cockpit-form-table, so isn't completely
PatternFly upstream compatible.

Closes #2249

Reviewed-by: Andreas Nilsson <f46bf31e47ec2b1a1da3827009f5228b3edfa016@redhat.com>

dperpeet/cockpit,maxamillion/cockpit,arilivigni/cockpit,Armstrong1992/cockpit,stefwalter/cockpit,vanloswang/cockpit,larsu/cockpit,deryni/cockpit,larsu/cockpit,martinpitt/cockpit,nmav/cockpit,larskarlitski/cockpit,evol262/cockpit,fridex/cockpit,cockpit-project/cockpit,michalskrivanek/cockpit,moolitayer/cockpit,mareklibra/cockpit,firebitsbr/cockpit,haiyangd/cockpit_view,firebitsbr/cockpit,larsu/cockpit,garrett/cockpit,harishanand95/cockpit,matobet/cockpit,matobet/cockpit,michalskrivanek/cockpit,maxamillion/cockpit,mareklibra/cockpit,xhad/cockpit,andreasn/cockpit,dperpeet/cockpit,arilivigni/cockpit,netzvieh/cockpit,matobet/cockpit,moolitayer/cockpit,larskarlitski/cockpit,petervo/cockpit,Thermionix/cockpit,xhad/cockpit,michalskrivanek/cockpit,xhad/cockpit,nmav/cockpit,garrett/cockpit,denysvitali/cockpit,vanloswang/cockpit,vbatts/cockpit,Scribery/cockpit,vanloswang/cockpit,darioajr/cockpit,vbatts/cockpit,Armstrong1992/cockpit,jscotka/cockpit,cockpituous/cockpit,larskarlitski/cockpit,deryni/cockpit,moraleslazaro/cockpit,netzvieh/cockpit,maxamillion/cockpit,petervo/cockpit,arilivigni/cockpit,jscotka/cockpit,stefwalter/cockpit,fridex/cockpit,andreasn/cockpit,haiyangd/cockpit_view,dperpeet/cockpit,netzvieh/cockpit,netzvieh/cockpit,garrett/cockpit,harishanand95/cockpit,sgallagher/cockpit,zigitax/cockpit,andreasn/cockpit,Scribery/cockpit,denysvitali/cockpit,SotolitoLabs/cockpit,evol262/cockpit,arilivigni/cockpit,denysvitali/cockpit,sgallagher/cockpit,harishanand95/cockpit,SotolitoLabs/cockpit,andreasn/cockpit,garrett/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,zigitax/cockpit,netzvieh/cockpit,nmav/cockpit,stefwalter/cockpit,haiyangd/cockpit_view,moraleslazaro/cockpit,vanloswang/cockpit,harishanand95/cockpit,Thermionix/cockpit,martinpitt/cockpit,darioajr/cockpit,larskarlitski/cockpit,Armstrong1992/cockpit,andreasn/cockpit,dperpeet/cockpit,stefwalter/cockpit,mvollmer/cockpit,harishanand95/cockpit,larsu/cockpit,denysvitali/cockpit,haiyangd/cockpit_view,fridex/cockpit,matobet/cockpit,cockpit-project/cockpit,stefwalter/cockpit,maxamillion/cockpit,jscotka/cockpit,michalskrivanek/cockpit,petervo/cockpit,xhad/cockpit,larsu/cockpit,arilivigni/cockpit,moraleslazaro/cockpit,Scribery/cockpit,deryni/cockpit,Armstrong1992/cockpit,sgallagher/cockpit,evol262/cockpit,darioajr/cockpit,arilivigni/cockpit,fridex/cockpit,SotolitoLabs/cockpit,cockpituous/cockpit,mvollmer/cockpit,zigitax/cockpit,maxamillion/cockpit,moolitayer/cockpit,stefwalter/cockpit,Scribery/cockpit,andreasn/cockpit,FireDrunk/cockpit,mareklibra/cockpit,jscotka/cockpit,evol262/cockpit,garrett/cockpit,SotolitoLabs/cockpit,FireDrunk/cockpit,netzvieh/cockpit,firebitsbr/cockpit,Scribery/cockpit,mareklibra/cockpit,michalskrivanek/cockpit,Thermionix/cockpit,Thermionix/cockpit,fridex/cockpit,FireDrunk/cockpit,Armstrong1992/cockpit,cockpit-project/cockpit,michalskrivanek/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,zigitax/cockpit,xhad/cockpit,zigitax/cockpit,evol262/cockpit,larsu/cockpit,vanloswang/cockpit,moolitayer/cockpit,sgallagher/cockpit,evol262/cockpit,mareklibra/cockpit,dperpeet/cockpit,sgallagher/cockpit,denysvitali/cockpit,moraleslazaro/cockpit,darioajr/cockpit,vbatts/cockpit,petervo/cockpit,larskarlitski/cockpit,SotolitoLabs/cockpit,larskarlitski/cockpit,vbatts/cockpit,vanloswang/cockpit,matobet/cockpit,Scribery/cockpit,deryni/cockpit,fridex/cockpit,cockpituous/cockpit,martinpitt/cockpit,mvollmer/cockpit,darioajr/cockpit,petervo/cockpit,mvollmer/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,FireDrunk/cockpit,firebitsbr/cockpit,larskarlitski/cockpit,FireDrunk/cockpit,nmav/cockpit,michalskrivanek/cockpit,petervo/cockpit,SotolitoLabs/cockpit,cockpituous/cockpit,deryni/cockpit,Thermionix/cockpit,sgallagher/cockpit,xhad/cockpit,jscotka/cockpit,moolitayer/cockpit,andreasn/cockpit,vbatts/cockpit,deryni/cockpit,jscotka/cockpit,moraleslazaro/cockpit,dperpeet/cockpit,mvollmer/cockpit,nmav/cockpit,cockpituous/cockpit,deryni/cockpit,Scribery/cockpit,harishanand95/cockpit,vbatts/cockpit,haiyangd/cockpit_view,cockpit-project/cockpit,matobet/cockpit,arilivigni/cockpit,mareklibra/cockpit,petervo/cockpit,mareklibra/cockpit,vanloswang/cockpit,xhad/cockpit,firebitsbr/cockpit,Thermionix/cockpit,harishanand95/cockpit,dperpeet/cockpit,stefwalter/cockpit,sgallagher/cockpit,martinpitt/cockpit