Add Dockerfile for frontend

frontend/Dockerfile

@@ -0,0 +1,13 @@
+# Stage 1: build the frontend
+FROM node:20-alpine AS build
+WORKDIR /app
+COPY package.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+# Stage 2: serve the static files
+FROM nginx:alpine
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

frontend/src/App.jsx

@@ -110,7 +110,7 @@ export default function App() {
                   />
                   <div style={{ display: 'flex', justifyContent: 'space-between' }}>
                     <input type="file" accept=".xml" onChange={(e) => loadFile(e, (text) => updateParam(i, 'value', text))} />
-                    <button onClick={() => download(p.value, `${p.name||'param'}.xml`)}>Download</button>
+                    <button onClick={() => download(p.value, `${p.name || "param"}.xml`)}>Download</button>
                   </div>
                 </div>
               )