Angular upgrade

	- Upgraded Angular from 14 to 15 version.

Change-Id: I2339a04020153cbc9ed7a14bfe8e0aa265e507da
Signed-off-by: SANDHYA.JS <sandhya.j@tataelxsi.co.in>
diff --git a/src/app/roles/roles-details/RolesDetailsComponent.html b/src/app/roles/roles-details/RolesDetailsComponent.html
index 28a3fe7..7ee4a2e 100644
--- a/src/app/roles/roles-details/RolesDetailsComponent.html
+++ b/src/app/roles/roles-details/RolesDetailsComponent.html
@@ -15,7 +15,7 @@
 
 Author: KUMARAN M (kumaran.m@tataelxsi.co.in), RAJESH S (rajesh.s@tataelxsi.co.in), BARATH KUMAR R (barath.r@tataelxsi.co.in)
 -->
-<div class="row d-flex flex-row justify-content-between">
+<div class="d-flex flex-row justify-content-between">
     <div class="d-flex align-items-center header-style">{{'ROLES' | translate}}</div>
     <span class="button">
         <button class="btn btn-primary" type="button" (click)="createRole()" placement="top"
@@ -25,8 +25,8 @@
         </button>
     </span>
 </div>
-<div class="row mt-2 mb-0 form-group justify-content-end list-utilites-actions">
-    <page-per-row class="mr-2" (pagePerRow)="onChange($event)"></page-per-row>
+<div class="mt-2 mb-2 form-group justify-content-end list-utilites-actions">
+    <page-per-row class="me-2" (pagePerRow)="onChange($event)"></page-per-row>
     <page-reload></page-reload>
 </div>
 <div class="smarttable-style bg-white mt-1">
diff --git a/src/app/roles/roles-details/RolesDetailsComponent.ts b/src/app/roles/roles-details/RolesDetailsComponent.ts
index 9c2e3e3..473a0c6 100644
--- a/src/app/roles/roles-details/RolesDetailsComponent.ts
+++ b/src/app/roles/roles-details/RolesDetailsComponent.ts
@@ -18,7 +18,6 @@
 /**
  * @file Roles Deatils component.
  */
-import { isNullOrUndefined } from 'util';
 import { Component, Injector, OnInit } from '@angular/core';
 import { Router } from '@angular/router';
 import { TranslateService } from '@ngx-translate/core';
@@ -30,7 +29,7 @@
 import { RolesActionComponent } from 'RolesAction';
 import { RoleData, RoleDetails } from 'RolesModel';
 import { Subscription } from 'rxjs';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
 
 /**
  * Creating component