refactor: update blog post date handling and schema

- Replaced `pubDate` with `datePublished` in blog post components for consistency.
- Updated sorting logic in blog sections to use `datePublished`.
- Enhanced blog post schema to include `dateModified` for better structured data representation.
- Adjusted various blog markdown files to reflect the new date fields.

src/utils/schemas/websiteSchema.ts

@@ -1,13 +1,15 @@
 import type { WithContext, WebSite } from "schema-dts";
 
 export type WebsiteSchemaParams = {
+	readonly description: string;
 	readonly siteUrl: string;
 	readonly title: string;
 };
 
-export default ({ siteUrl, title }: WebsiteSchemaParams): WithContext<WebSite> => ({
+export default ({ siteUrl, title, description }: WebsiteSchemaParams): WithContext<WebSite> => ({
 	"@context": "https://schema.org",
 	"@type": "WebSite",
 	"url": new URL("/", siteUrl).toString(),
 	"name": title,
+	"description": description,
 });