remove public folder as its not used

Author: edwnl

frontend/Dockerfile

@@ -32,7 +32,6 @@ USER nextjs
 # Copy built assets from builder stage
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
-COPY --from=builder --chown=nextjs:nodejs /app/public ./public
 
 EXPOSE 3000