env variable

Author: prakriti-solankey

frontend/Dockerfile

@@ -10,6 +10,7 @@ ARG TIME_PER_CHUNK=4
 ARG TIME_PER_PAGE=50
 ARG LARGE_FILE_SIZE=5242880
 ARG CHUNK_SIZE=5242880
+ARG CHAT_MODES=""
 ARG ENV="DEV"
 
 WORKDIR /app