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.

1 files changed, 21 insertions, 0 deletions

diff --git a/src/utils/schemas/breadcrumbSchema.ts b/src/utils/schemas/breadcrumbSchema.ts
new file mode 100644
index 0000000..e1a1ea3
--- /dev/null
+++ b/src/utils/schemas/breadcrumbSchema.ts
@@ -0,0 +1,21 @@
+import type { BreadcrumbList } from "schema-dts";
+
+export type BreadcrumbItem = {
+	readonly name: string;
+	readonly url: string;
+};
+
+export type BreadcrumbSchemaParams = {
+	readonly items: BreadcrumbItem[];
+	readonly siteUrl: string;
+};
+
+export default ({ items, siteUrl }: BreadcrumbSchemaParams): BreadcrumbList => ({
+	"@type": "BreadcrumbList",
+	"itemListElement": items.map((item, index) => ({
+		"@type": "ListItem",
+		"position": index + 1,
+		"name": item.name,
+		"item": new URL(item.url, siteUrl).toString(),
+	})),
+});