MT#63561 Fix crash on PBX seat page due to unauthorized error

The PBX seat page was crashing because v2 calls always return
unauthorized. An investigation is ongoing to determine whether
NCOS seat should be accessed by subscriber. In the meantime,
errors are handled gracefully so the user can continue using
the app.

Change-Id: Ie4ce6c7970815b448f406bb5e64aeefda348aeed

src/api/subscriber.js

@@ -107,12 +107,16 @@ export function getNcosLevels (options) {
     })
 }
 export async function getNcosSet () {
-    let streams = []
-    const res = await httpApi.get('api/v2/ncos/sets/')
-    if (res.data.total_count > 0) {
-        streams = getJsonBody(res.data)._embedded['ngcp:ncos/sets']
+    try {
+        let streams = []
+        const res = await get({ path: 'api/v2/ncos/sets/' })
+        if (res?.data?.total_count > 0) {
+            streams = getJsonBody(res.data)._embedded['ngcp:ncos/sets']
+        }
+        return streams
+    } catch (err) {
+        return []
     }
-    return streams
 }
 export async function removePreference (id, field) {
     return await patchRemove({

src/store/user.js

@@ -631,7 +631,7 @@ export default {
         async getNcosSetSubscriber () {
             const ncosSet = []
             const list = await getNcosSet()
-            list.forEach((setNcos) => {
+            list?.forEach((setNcos) => {
                 ncosSet.push({
                     label: setNcos.name,
                     value: setNcos.id