Copy public assets into frontend image

frontend/Dockerfile

@@ -8,6 +8,7 @@ COPY package.json ./
 RUN npm install
 
 COPY app ./app
+COPY public ./public
 COPY next-env.d.ts ./next-env.d.ts
 COPY next.config.js ./next.config.js
 COPY tsconfig.json ./tsconfig.json
@@ -22,6 +23,7 @@ ENV NEXT_TELEMETRY_DISABLED=1 \
     NODE_ENV=production
 
 COPY --from=builder /app/.next ./.next
+COPY --from=builder /app/public ./public
 COPY --from=builder /app/node_modules ./node_modules
 COPY --from=builder /app/package.json ./package.json
 COPY --from=builder /app/next.config.js ./next.config.js