Add the Umami script and the Website Info (#10)

Rather barebones for now because I can go several ways from there

netlify/functions/umami.ts

@@ -0,0 +1,44 @@
+import { UmamiInfo } from "#Infos/Website/Umami.js";
+import {type Handler} from "@netlify/functions";
+
+const handler: Handler = async () => {
+  const api_server = "https://api.umami.is/v1";
+  const website_id = "3461d539-c2fb-4930-9d4a-a0e4016a174a";
+  const now = new Date();
+  const response = await fetch(`${api_server}/websites/${website_id}/stats?startAt=${Number(new Date("2025"))}&endAt=${Number(now)}`, {
+    headers: {
+      "Accept": "application/json",
+      "x-umami-api-key": process.env.API_UMAMI!
+    },
+  });
+
+  // From https://github.com/umami-software/api-client/blob/master/src/types.ts
+  // Not using the package directly because of serious issues I consider it to have
+  const umami = await response.json() as {
+    pageviews: { value: number; prev: number };
+    visitors: { value: number; prev: number };
+    visits: { value: number; prev: number };
+    bounces: { value: number; prev: number };
+    totaltime: { value: number; prev: number };
+  };
+
+  if (!umami) {
+    return {
+      statusCode: 404,
+    };
+  }
+
+  const info: UmamiInfo = {
+    pageviews: umami.pageviews.value,
+    visits: umami.visits.value,
+    visitors: umami.visitors.value,
+    totaltime: umami.totaltime.value
+  };
+
+  return {
+    statusCode: 200,
+    body: JSON.stringify(info),
+  };
+};
+
+export {handler};