Add missing router names

Overview and Sensors routes were missing router names.
Removed empty string value name, since it doesn't help
identify a router by name.

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: Idcff2c4104427d50abfc260c90d8087efe6525e3
diff --git a/src/router/index.js b/src/router/index.js
index 6e95834..c3d4439 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -10,7 +10,6 @@
 const routes = [
   {
     path: '/',
-    name: '',
     meta: {
       requiresAuth: true
     },
@@ -18,6 +17,7 @@
     children: [
       {
         path: '',
+        name: 'overview',
         component: () => import('@/views/Overview'),
         meta: {
           title: 'appPageTitle.overview'
@@ -25,6 +25,7 @@
       },
       {
         path: '/health/sensors',
+        name: 'sensors',
         component: () => import('@/views/Health/Sensors'),
         meta: {
           title: 'appPageTitle.sensors'