fix image backend

dockerfile

@@ -5,6 +5,7 @@ COPY package*.json ./
 RUN npm install
 
 COPY . .
+COPY public ./public
 RUN npm run build
 
 FROM node:18
@@ -13,6 +14,8 @@ WORKDIR /app
 COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/node_modules ./node_modules
 COPY --from=builder /app/package*.json ./
+COPY --from=builder /app/public ./public
+
 
 EXPOSE 4000