Added frontend lint comand in package.json
Added frontend lint comand in package.json

no issue

- The command was a missing bit for changes introduced in e10e71cc26ae62a2e22b785c214457b687dbac3d

e10/Ghost,bitjson/Ghost,kevinansfield/Ghost,TryGhost/Ghost,bitjson/Ghost,ErisDS/Ghost,kevinansfield/Ghost,JohnONolan/Ghost,kevinansfield/Ghost,Kikobeats/Ghost,janvt/Ghost,JohnONolan/Ghost,TryGhost/Ghost,janvt/Ghost,e10/Ghost,Kikobeats/Ghost,JohnONolan/Ghost,ErisDS/Ghost,Kikobeats/Ghost,TryGhost/Ghost,ErisDS/Ghost