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/projects/ProjectsComponent.ts b/src/app/projects/ProjectsComponent.ts
index 982421e..2c0e105 100644
--- a/src/app/projects/ProjectsComponent.ts
+++ b/src/app/projects/ProjectsComponent.ts
@@ -18,7 +18,6 @@
 /**
  * @file Project details Component.
  */
-import { isNullOrUndefined } from 'util';
 import { Component, Injector, OnDestroy, OnInit } from '@angular/core';
 import { NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap';
 import { TranslateService } from '@ngx-translate/core';
@@ -32,7 +31,7 @@
 import { ProjectsActionComponent } from 'ProjectsAction';
 import { RestService } from 'RestService';
 import { Subscription } from 'rxjs';
-import { SharedService } from 'SharedService';
+import { SharedService, isNullOrUndefined } from 'SharedService';
 
 /**
  * Creating component