Static CMS v2.0 (#226)

- [x] Update auf Static CMS v2.0
- [x] aktualisierte Shortcodes (schließt #225)
- [x] aktualisierte Previews (schließt #181)
- Ordnerunterstützung
- [x] vervollständigte Seiten
- [x] Aufräumarbeiten

Reviewed-on: https://git.cantorgymnasium.de/gcg/gcg-website/pulls/226

static/admin/previews/page-previews/components/page-header.js

@@ -0,0 +1,51 @@
+const PageHeader = (entry) => {
+	return h(
+		"section",
+		{
+			key: "page-header",
+			className: "page-title-section overlay",
+			style: {
+				backgroundImage:
+					'url("/media/backgrounds/page-title.webp"),url("/media/backgrounds/page-title.webp")',
+			},
+		},
+		h(
+			"div",
+			{ className: "container" },
+			h(
+				"div",
+				{ className: "row" },
+				h(
+					"div",
+					{ className: "col-md-8 position-relative" },
+					h(
+						"ul",
+						{ className: "list-inline" },
+						h(
+							"li",
+							{ className: "list-inline-item h2" },
+							h(
+								"font",
+								{ className: "text-primary font-secondary", href: "" },
+								"Startseite"
+							)
+						),
+						h(
+							"li",
+							{ className: "list-inline-item h2" },
+							h("i", { className: "mdi mdi-chevron-double-right text-white" })
+						),
+						h(
+							"li",
+							{ className: "list-inline-item text-white h2 font-secondary" },
+							entry.data.title
+						)
+					),
+					h("p", { className: "text-lighten" }, entry.data.description)
+				)
+			)
+		)
+	);
+};
+
+export default PageHeader;