Added docker image build script (#245)

* Added docker image build script

* Changed to alpine docker and expose port 9180

* Use multi-stage build

---------

Co-authored-by: = <=>
Co-authored-by: Jeff <42182408+jeffvli@users.noreply.github.com>

Dockerfile

@@ -0,0 +1,17 @@
+# --- Builder stage
+FROM node:18-alpine as builder
+WORKDIR /app
+COPY . /app
+
+# Scripts include electron-specific dependencies, which we don't need
+RUN npm install --legacy-peer-deps --ignore-scripts
+RUN npm run build:web
+
+# --- Production stage
+FROM nginx:alpine-slim
+
+COPY --from=builder /app/release/app/dist/web /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 9180
+CMD ["nginx", "-g", "daemon off;"]