deprecated

[vahid-forghani]

https://github.com/amezenin/encyclopedia-frontend/blob/1d5ccf32e76e932d6ebbb4e0337173fb836f191e/src/app/article/update-article/update-article.component.ts#L21

this way of using subscribe is deprecated and better to use observer like this:

this.articleService.getArticleById(this.id).subscribe({
      next: data => {
        this.article = data;
        }, 
      error: error => console.log(error)
    });