Merge pull request 'feat(docker): added multi stage dockerfile' (#4) from feat/docker-image into main

Reviewed-on: #4

Dockerfile

@@ -0,0 +1,11 @@
+FROM node:20 AS builder
+
+COPY . /brunsviga
+WORKDIR /brunsviga
+
+RUN npm ci
+RUN npm run build
+
+FROM nginx:mainline-alpine3.20-slim as runtime
+
+COPY --from=builder /brunsviga/dist /usr/share/nginx/html/