updated gateway routes

fda-gateway-service/src/main/java/at/tuwien/gatewayservice/config/GatewayConfig.java

@@ -16,6 +16,11 @@ public class GatewayConfig {
                         .method("POST","GET","PUT","DELETE")
                         .and()
                         .uri("lb://fda-container-service"))
+                .route("fda-container-service", r -> r.path("/api/image/**")
+                        .and()
+                        .method("POST","GET","PUT","DELETE")
+                        .and()
+                        .uri("lb://fda-container-service"))
                 .route("fda-database-service", r -> r.path("/api/database/**")
                         .and()
                         .method("POST","GET","PUT","DELETE")