Fix custom ui sample

Author: ulischulte

spring-boot-admin-samples/spring-boot-admin-sample-custom-ui/README.md

@@ -10,7 +10,7 @@ To develop the ui on an running server the best to do is
 
 1. Running the ui build in watch mode so the resources get updated:
 ```shell
-npm run watch
+npm run build:watch
 ```
 2. Run a Spring Boot Admin Server instances with the template-location and resource-location pointing to the build output and disable caching:
 ```
@@ -28,5 +28,5 @@ npm run build
 
 Repeated build with watching the files:
 ```shell
-npm run watch
+npm run build:watch
 ```

spring-boot-admin-samples/spring-boot-admin-sample-custom-ui/package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "build": "vite build",
     "build:dev": "NODE_ENV=development vite build --emptyOutDir --sourcemap --mode development",
+    "build:watch": "NODE_ENV=development vite build --emptyOutDir --watch --sourcemap --mode development",
     "preview": "vite preview"
   },
   "dependencies": {