added route for /ui path

kafka-ui-api/src/main/java/com/provectus/kafka/ui/rest/config/CustomWebFilter.java

@@ -10,7 +10,7 @@ import reactor.core.publisher.Mono;
 public class CustomWebFilter implements WebFilter {
     @Override
     public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
-        if (exchange.getRequest().getURI().getPath().equals("/")) {
+        if (exchange.getRequest().getURI().getPath().equals("/") || exchange.getRequest().getURI().getPath().startsWith("/ui")) {
             return chain.filter(exchange.mutate().request(exchange.getRequest().mutate().path("/index.html").build()).build());
         }