code refactoring

src/app/blog/blog.component.html

@@ -12,13 +12,13 @@
           <a [href]="post.postUrl" target="_blank">
 
             <figure class="blog-banner-box" *ngIf="post.image">
-              <img src="{{blogImageUrl + post.image}}" [alt]="post.title" loading="lazy">
+              <img src="{{blogUrl + post.image}}" [alt]="post.title" loading="lazy">
             </figure>
 
             <div class="blog-content">
 
               <div class="blog-meta">
-                <p class="blog-category">{{post.categories}}</p>
+                <p class="blog-category" *ngFor="let category of post.categories; index as i">{{post.categories.length - i > 1 ? category + ',' : category}}</p>
 
                 <span class="dot"></span>