add payment route + additional starting blocks

src/routes/(abrechnung)/abrechnung/+page.server.ts

@@ -0,0 +1,14 @@
+import type { PageServerLoad } from "./$types";
+
+export async function load({ fetch }) {
+    const res = await fetch(`/api/payments/items/10`, {method: "POST",
+			body: JSON.stringify({
+	    				start: 0
+    					}),
+			headers: {
+	    			credentials: "include"
+    				}
+    			});
+    const item = await res.json();
+    return { ...item};
+};