Read dashboard language from environment variable

Author: broeder-j

survey_dashboard/main.py

@@ -31,7 +31,7 @@
 
 
 # GLOBAL
-LANGUAGE = 'EN' #'DE'
+LANGUAGE = os.environ.get('LANGUAGE_DASHBOARD', 'EN') #'DE'
 ACCORDION_WIDTH = int(DEFAULT_FIGURE_WIDTH*2) # maybe this can be made dynamic. 
 # This is the only width parameter to which everything streches to