#13 action for automatically building and pushing docker images

Co-authored-by: Tim <timwundenberg@outlook.de>
Reviewed-on: tim/me-fit#20

view/Dockerfile

@@ -1,9 +1,10 @@
 FROM node:20 AS build
+ARG PUBLIC_BASE_API_URL=
 
-WORKDIR .
+WORKDIR /app
 
 COPY . ./
 RUN npm install && npm run build
 
 FROM nginx:1.27.0-alpine
-COPY --from=build /build /usr/share/nginx/html
+COPY --from=build /app/build /usr/share/nginx/html