Fix config key for default email sender name
Fix config key for default email sender name

MichaelMaar/concrete5,matt9mg/concrete5,matt9mg/concrete5,avdevs/concrete5,MichaelMaar/concrete5,matt9mg/concrete5,MichaelMaar/concrete5,avdevs/concrete5,TimDix/concrete5,TimDix/concrete5,TimDix/concrete5,avdevs/concrete5