Koenig - Use loose BEM naming for image style classes
Koenig - Use loose BEM naming for image style classes

refs https://github.com/TryGhost/Ghost/issues/9505

Gargol/Ghost,bitjson/Ghost,JohnONolan/Ghost,kevinansfield/Ghost,TryGhost/Ghost,e10/Ghost,TryGhost/Ghost,janvt/Ghost,Kikobeats/Ghost,Kikobeats/Ghost,ErisDS/Ghost,dbalders/Ghost,ErisDS/Ghost,kevinansfield/Ghost,kevinansfield/Ghost,janvt/Ghost,Kikobeats/Ghost,e10/Ghost,dbalders/Ghost,Gargol/Ghost,chevex/undoctrinate,JohnONolan/Ghost,ErisDS/Ghost,dbalders/Ghost,JohnONolan/Ghost,bitjson/Ghost,TryGhost/Ghost