SED-3222 add custom toast

[lukasz-lepa]

https://exense.atlassian.net/browse/SED-3304

[dvladir]

Suggested change

	<step-toast [message]="toast.message" [actions]="toast.actions" [duration]="toast.duration"> </step-toast>
	<step-toast [message]="toast.message" [actions]="toast.actions" [duration]="toast.duration"/>

[dvladir]

I think the usage of signals could simplify this code

Suggested change

	private toastSubject = new Subject<{ message: string; actions?: NotificationAction[]; duration?: number }[]>();
	toastMessages = this.toastSubject.asObservable();
	private toasts: { message: string; actions: NotificationAction[]; duration: number }[] = [];
	showToast(message: string, actions?: NotificationAction[], duration?: number): void {
	this.toasts.push({ message, actions: actions || [], duration: duration || 3000 });
	this.toastSubject.next(this.toasts);
	}
	removeToast(message: string): void {
	this.toasts = this.toasts.filter((toast) => toast.message !== message);
	this.toastSubject.next(this.toasts);
	}
	private toastsInternal = signal<{ message: string; actions?: NotificationAction[]; duration?: number }[]>([]);
	readonly toastMessages = this.toastsInternal.asReadonly();
	showToast(message: string, actions: NotificationAction[] = [], duration: number = 3000): void {
	this.toastsInternal.update((toasts) => toasts.concat({message, actions, duration})) ;
	}
	removeToast(message: string): void {
	this.toastsInternal.update((toasts) => toasts.filter((toast) => toast.message !== message));
	}

[dvladir]

Please, check the comment below in ToastService. With signal usage the code of current component could look like this

Suggested change

	toasts: { message: string; actions?: NotificationAction[]; duration?: number }[] = [];
	constructor(private toastService: ToastService) {}
	ngOnInit(): void {
	this.toastService.toastMessages.subscribe((toasts) => {
	this.toasts = toasts;
	});
	}
	protected readonly _toasts = inject(ToastService).toastMessages;

[dvladir]

@neogucky @lukasz-lepa
Shouldn't we use feather-icons here instead of unicode symbols?