feat(portal): implement adding/removing to desktop (#2374)

* feat(portal): implement adding/removing to desktop, reordering desktop items, baseline for system utils

* chore: fix comments

---------

Co-authored-by: Matt Hill <MattDHill@users.noreply.github.com>

frontend/projects/shared/src/directives/alert/alert.directive.ts

@@ -1,22 +0,0 @@
-import { Directive } from '@angular/core'
-import {
-  AbstractTuiDialogDirective,
-  AbstractTuiDialogService,
-} from '@taiga-ui/cdk'
-import { TuiAlertOptions, TuiAlertService } from '@taiga-ui/core'
-
-// TODO: Move to Taiga UI
-@Directive({
-  selector: 'ng-template[tuiAlert]',
-  providers: [
-    {
-      provide: AbstractTuiDialogService,
-      useExisting: TuiAlertService,
-    },
-  ],
-  inputs: ['options: tuiAlertOptions', 'open: tuiAlert'],
-  outputs: ['openChange: tuiAlertChange'],
-})
-export class TuiAlertDirective<T> extends AbstractTuiDialogDirective<
-  TuiAlertOptions<T>
-> {}

frontend/projects/shared/src/directives/alert/alert.module.ts

@@ -1,8 +0,0 @@
-import { NgModule } from '@angular/core'
-import { TuiAlertDirective } from './alert.directive'
-
-@NgModule({
-  declarations: [TuiAlertDirective],
-  exports: [TuiAlertDirective],
-})
-export class TuiAlertModule {}

frontend/projects/shared/src/public-api.ts

@@ -18,8 +18,6 @@ export * from './components/text-spinner/text-spinner.component.module'
 export * from './components/ticker/ticker.component'
 export * from './components/ticker/ticker.module'
 
-export * from './directives/alert/alert.directive'
-export * from './directives/alert/alert.module'
 export * from './directives/responsive-col/responsive-col.directive'
 export * from './directives/responsive-col/responsive-col.module'
 export * from './directives/responsive-col/responsive-col-viewport.directive'