refactor: improve code quality

src/components/PostCard.astro

@@ -8,7 +8,7 @@ import I18nKey from "../i18n/i18nKey";
 import {getDir} from "../utils/url-utils";
 
 interface Props {
-    class: string;
+    class?: string;
     entry: any;
     title: string;
     url: string;
@@ -17,11 +17,10 @@ interface Props {
     category: string;
     image: string;
     description: string;
-    words: number;
     draft: boolean;
     style: string;
 }
-const { entry, title, url, published, tags, category, image, description, words, style } = Astro.props;
+const { entry, title, url, published, tags, category, image, description, style } = Astro.props;
 const className = Astro.props.class;
 
 const hasCover = image !== undefined && image !== null && image !== '';