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/field-previews/body-preview.js

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+import { truncate } from "./components/index.js";
+
+const BodyPreview = ({ value }) => h("p", {}, truncate(value ?? "", 50));
+
+export default BodyPreview;

static/admin/previews/field-previews/boolean-preview.js

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+const BooleanPreview = ({ value }) =>
+	h("i", {
+		className: value ? "mdi mdi-check" : "mdi mdi-close",
+	});
+
+export default BooleanPreview;

static/admin/previews/field-previews/components/index.js

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+import truncate from "./truncate.js";
+
+export { truncate };

static/admin/previews/field-previews/components/truncate.js

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+function truncate(str, num) {
+	if (str.length > num) {
+		return str.slice(0, num) + "...";
+	} else {
+		return str;
+	}
+}
+
+export default truncate;

static/admin/previews/field-previews/count-preview.js

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+const CountPreview = ({ value }) => (value ? value.length : 0);
+
+export default CountPreview;

static/admin/previews/field-previews/date-preview.js

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+const DatePreview = ({ value }) =>
+	h(
+		"p",
+		{},
+		new Intl.DateTimeFormat("de-DE", {
+			year: "numeric",
+			month: "2-digit",
+			day: "2-digit",
+			hour12: false,
+		}).format(new Date(value))
+	);

static/admin/previews/field-previews/draft-preview.js

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+const DraftPreview = ({ value }) =>
+	h(
+		"div",
+		{
+			style: {
+				backgroundColor: value === true ? "rgb(37 99 235)" : "rgb(22 163 74)",
+				color: "white",
+				border: "none",
+				padding: "2px 6px",
+				textAlign: "center",
+				textDecoration: "none",
+				display: "inline-block",
+				cursor: "pointer",
+				borderRadius: "4px",
+				fontSize: "14px",
+			},
+		},
+		value ? "Entwurf" : "Veröffentlicht"
+	);
+
+export default DraftPreview;

static/admin/previews/field-previews/index.js

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+import BooleanPreview from "./boolean-preview.js";
+import DraftPreview from "./draft-preview.js";
+import CountPreview from "./count-preview.js";
+import BodyPreview from "./body-preview.js";
+import DraftPreview from "./draft-preview.js";
+
+export {
+	BooleanPreview,
+	DraftPreview,
+	CountPreview,
+	BodyPreview,
+	DraftPreview,
+};