Default to empty string for UI language detection
Default to empty string for UI language detection

When removing all “Languages” from Firefox, the UI breaks and you see an error in the console that says “langInfo is undefined”. This fixes that.

wwitzel3/awx,wwitzel3/awx,wwitzel3/awx,wwitzel3/awx,snahelou/awx,snahelou/awx,snahelou/awx,snahelou/awx