🐛 Fixed wrong min-width publication icon validation
🐛 Fixed wrong min-width publication icon validation

closes #8797 

Changed the min-width for publication icon validation to allow icon greater or equal to 60px, rather than greater only.
acburdine/Ghost,dbalders/Ghost,TryGhost/Ghost,cwonrails/Ghost,dbalders/Ghost,ErisDS/Ghost,Kikobeats/Ghost,BlueHatbRit/Ghost,acburdine/Ghost,TryGhost/Ghost,janvt/Ghost,sebgie/Ghost,JohnONolan/Ghost,bitjson/Ghost,TryGhost/Ghost,Kikobeats/Ghost,ErisDS/Ghost,mohanambati/Ghost,sebgie/Ghost,ErisDS/Ghost,e10/Ghost,kevinansfield/Ghost,janvt/Ghost,cwonrails/Ghost,dbalders/Ghost,mohanambati/Ghost,Gargol/Ghost,sebgie/Ghost,Gargol/Ghost,acburdine/Ghost,BlueHatbRit/Ghost,e10/Ghost,cwonrails/Ghost,kevinansfield/Ghost,JohnONolan/Ghost,Kikobeats/Ghost,chevex/undoctrinate,JohnONolan/Ghost,mohanambati/Ghost,bitjson/Ghost,kevinansfield/Ghost