feat: add AppSidebarNavComponent/AppSidebarMinimizer to public api

Fixes #110

Author: coyoteecd

projects/coreui/angular/src/lib/sidebar/public_api.ts

@@ -1,4 +1,6 @@
 export { INavData } from './app-sidebar-nav';
 export { AppSidebarComponent } from './app-sidebar.component';
+export { AppSidebarNavComponent } from './app-sidebar-nav.component';
+export { AppSidebarMinimizerComponent } from './app-sidebar-minimizer.component';
 export { SidebarNavHelper } from './app-sidebar-nav.service';
 export { AppSidebarModule } from './app-sidebar.module';