Change prefix to match application name

The old prefix was rd-, from Rich Dashboard.

Change-Id: Icd1449cc5ffa07e4c7c3d5e9ac0fa04de39aa9d9
Signed-off-by: elinuxhenrik <henrik.b.andersson@est.tech>
Issue-ID: NONRTRIC-408
diff --git a/webapp-frontend/src/index.html b/webapp-frontend/src/index.html
index 83f24ae..0f8ee56 100644
--- a/webapp-frontend/src/index.html
+++ b/webapp-frontend/src/index.html
@@ -28,6 +28,6 @@
     <link rel="icon" type="image/x-icon" href="assets/oran-logo.png">
   </head>
   <body>
-    <rd-root></rd-root>
+    <nrcp-root></nrcp-root>
   </body>
 </html>