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/blogPostSchema.ts

@@ -1,23 +1,24 @@
 import type { WithContext, BlogPosting } from "schema-dts";
 
 export type BlogPostSchemaParams = {
-	readonly siteUrl: string;
-	readonly title: string;
-	readonly description: string;
-	readonly slug: string;
-	readonly datePublished: string;
 	readonly author: string;
+	readonly dateModified: string;
+	readonly datePublished: string;
+	readonly description: string;
 	readonly lang: string;
+	readonly siteUrl: string;
+	readonly slug: string;
+	readonly title: string;
 };
 
-export default ({ siteUrl, title, description, slug, datePublished, author, lang }: BlogPostSchemaParams): WithContext<BlogPosting> => ({
+export default ({ siteUrl, slug, title, description, datePublished, dateModified, author, lang }: BlogPostSchemaParams): WithContext<BlogPosting> => ({
 	"@context": "https://schema.org",
 	"@type": "BlogPosting",
 	"url": new URL(`/blog/${slug}`, siteUrl).toString(),
 	"headline": title,
 	"description": description,
 	"datePublished": datePublished,
-	"dateModified": datePublished,
+	"dateModified": dateModified,
 	"inLanguage": lang,
 	"author": {
 		"@type": "Person",