fixes dev docker container

Dockerfile

@@ -20,7 +20,7 @@ WORKDIR /root/PoLZy/polzy-frontend
 
 RUN npm install
 
-EXPOSE 3000
+EXPOSE 3000 5000
 
 ENV USER root
 CMD ["/root/PoLZy_Showcase/runAllinDocker.sh"]

runbackend.sh

@@ -5,6 +5,7 @@ export LANG=de_DE.utf-8
 
 export FLASK_APP=app
 export FLASK_ENV=development
+export FLASK_RUN_HOST=0.0.0.0
 
 flask db init
 flask db migrate