Changing metadata in a user profile without specifying a password brings up a success and an error panel (DSpace#3818)

* Agregar validador para mostrar mensaje de error solo si se escribe la contraseña actual

* Agregar validador para mostrar mensaje de error solo si se escribe la contraseña actual

* Set constant variable for valid current password in profile page

Author: VictorDuranEscire

src/app/profile-page/profile-page.component.ts

@@ -173,7 +173,8 @@ export class ProfilePageComponent implements OnInit {
    */
   updateSecurity() {
     const passEntered = isNotEmpty(this.password);
-    if (this.invalidSecurity) {
+    const validCurrentPassword = isNotEmpty(this.currentPassword);
+    if (validCurrentPassword && !passEntered) {
       this.notificationsService.error(this.translate.instant(this.PASSWORD_NOTIFICATIONS_PREFIX + 'error.general'));
     }
     if (!this.invalidSecurity && passEntered) {