Spring Boot игнорирует CSS / JS при загрузке страницы

    @GetMapping
    public String main(Map<String, Object> model) {
        Iterable<Client> clients = repo.findAll();
        model.put("clients", clients);
        return "order";
    }
 
    @PostMapping
    public String add(@RequestParam String firstName, @RequestParam String lastName, @RequestParam String nationality,
                      @RequestParam String sex, @RequestParam(name = "birthDate") @DateTimeFormat(pattern = "yyyy-MM-dd")
                                  Date birthDate, @RequestParam long passNumber, Map<String, Object> model) {
        Client client = new Client(firstName, lastName, nationality, sex, birthDate, passNumber);
        repo.save(client);
       
        Iterable<Client> clients = repo.findAll();
        model.put("clients", client);
 
        return "order";
    }

    @SpringBootApplication
    public class Application {
 
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
 
    @Bean
    public ViewResolver getViewResolver(ResourceLoader resourceLoader) {
        MustacheViewResolver mustacheViewResolver
                = new MustacheViewResolver();
        mustacheViewResolver.setPrefix("templates/");
        mustacheViewResolver.setSuffix(".mustache");
        mustacheViewResolver.setCache(false);
 
        return mustacheViewResolver;
    }