refactor: safe ?.unsubscribe() from subscriptions

Author: xidedix

projects/coreui-angular/src/lib/dropdown/dropdown-menu/dropdown-menu.directive.ts

@@ -78,7 +78,7 @@ export class DropdownMenuDirective implements OnInit, OnDestroy {
           }
         });
     } else {
-      this.dropdownStateSubscription.unsubscribe();
+      this.dropdownStateSubscription?.unsubscribe();
     }
   }
 }

projects/coreui-angular/src/lib/dropdown/dropdown/dropdown.component.ts

@@ -312,7 +312,7 @@ export class DropdownComponent implements AfterContentInit, OnChanges, OnDestroy
           }
         });
     } else {
-      this.dropdownStateSubscription.unsubscribe();
+      this.dropdownStateSubscription?.unsubscribe();
     }
   }
 

projects/coreui-angular/src/lib/modal/modal/modal.component.ts

@@ -276,7 +276,7 @@ export class ModalComponent implements OnInit, OnDestroy {
         }
       );
     } else {
-      this.stateToggleSubscription.unsubscribe();
+      this.stateToggleSubscription?.unsubscribe();
     }
   }
 

projects/coreui-angular/src/lib/offcanvas/offcanvas/offcanvas.component.ts

@@ -269,7 +269,7 @@ export class OffcanvasComponent implements OnInit, OnDestroy {
           }
         });
     } else {
-      this.#stateToggleSubscription.unsubscribe();
+      this.#stateToggleSubscription?.unsubscribe();
     }
   }
 

projects/coreui-angular/src/lib/sidebar/sidebar-nav/sidebar-nav-link.component.ts

@@ -95,7 +95,7 @@ export class SidebarNavLinkComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
-    this.navSubscription.unsubscribe();
+    this.navSubscription?.unsubscribe();
   }
 
   public getLinkType(): string {

projects/coreui-angular/src/lib/sidebar/sidebar-nav/sidebar-nav.component.ts

@@ -161,7 +161,7 @@ export class SidebarNavGroupComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
-    this.navSubscription.unsubscribe();
+    this.navSubscription?.unsubscribe();
   }
 
   onAnimationStart($event: AnimationEvent) {

projects/coreui-angular/src/lib/sidebar/sidebar/sidebar.component.ts

@@ -285,7 +285,7 @@ export class SidebarComponent implements OnChanges, OnDestroy, OnInit {
         }
       );
     } else {
-      this.#layoutChangeSubscription.unsubscribe();
+      this.#layoutChangeSubscription?.unsubscribe();
     }
   }
 }

projects/coreui-angular/src/lib/toast/toaster/toaster.component.ts

@@ -169,7 +169,7 @@ export class ToasterComponent implements OnDestroy, OnInit, AfterContentChecked
         }
       });
     } else {
-      this.stateToasterSubscription.unsubscribe();
+      this.stateToasterSubscription?.unsubscribe();
     }
   }
 }