refactor: update schema handling and improve SEO metadata

- Changed schema type from WithContext<Thing> to Thing[] in Head, BaseLayout, and JsonLd components for better flexibility.
- Added optional robots meta tag to Head component.
- Updated JSON-LD generation in JsonLd component to include a structured payload.
- Enhanced page and blog schemas to support breadcrumb and person schemas for improved SEO.
- Introduced new utility schemas for website and person to streamline schema generation.
- Refactored existing schemas to align with the new structure and ensure consistency across components.

src/utils/schemas/personSchema.ts

@@ -0,0 +1,17 @@
+import type { Person } from "schema-dts";
+import { config } from "../../config";
+import { personId } from "./ids";
+
+export type PersonSchemaParams = {
+	readonly siteUrl: string;
+};
+
+export default ({ siteUrl }: PersonSchemaParams): Person => ({
+	"@type": "Person",
+	"@id": personId(siteUrl),
+	"name": config.author.name,
+	"url": config.author.url,
+	"email": config.author.email,
+	"image": new URL(config.og.defaultPreview, siteUrl).toString(),
+	"sameAs": config.author.sameAs,
+});