feat: bundle browser dependencies locally

src/client/app.ts

@@ -1,5 +1,5 @@
 // @ts-nocheck
-import exifr from "https://cdn.jsdelivr.net/npm/exifr@7.1.3/+esm";
+import exifr from "/vendor/exifr/full.esm.mjs";
 import { createPhotoMarkerIcon } from "./map-view.js";
 import { parseListing, resolveDavBaseUrl } from "./nextcloud-import.js";
 import {