Add progressive web app companion for cross-platform access

Vite + TypeScript PWA that mirrors the Android app's core features:
- Pre-processed shelter data (build-time UTM33N→WGS84 conversion)
- Leaflet map with shelter markers, user location, and offline tiles
- Canvas compass arrow (ported from DirectionArrowView.kt)
- IndexedDB shelter cache with 7-day staleness check
- Service worker with CacheFirst tiles and precached app shell
- i18n for en, nb, nn (ported from Android strings.xml)
- iOS/Android compass handling with low-pass filter
- Respects user map interaction (no auto-snap on pan/zoom)
- Build revision cache-breaker for reliable SW updates

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pwa/node_modules/lodash/forEachRight.js

@@ -0,0 +1,31 @@
+var arrayEachRight = require('./_arrayEachRight'),
+    baseEachRight = require('./_baseEachRight'),
+    castFunction = require('./_castFunction'),
+    isArray = require('./isArray');
+
+/**
+ * This method is like `_.forEach` except that it iterates over elements of
+ * `collection` from right to left.
+ *
+ * @static
+ * @memberOf _
+ * @since 2.0.0
+ * @alias eachRight
+ * @category Collection
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {Function} [iteratee=_.identity] The function invoked per iteration.
+ * @returns {Array|Object} Returns `collection`.
+ * @see _.forEach
+ * @example
+ *
+ * _.forEachRight([1, 2], function(value) {
+ *   console.log(value);
+ * });
+ * // => Logs `2` then `1`.
+ */
+function forEachRight(collection, iteratee) {
+  var func = isArray(collection) ? arrayEachRight : baseEachRight;
+  return func(collection, castFunction(iteratee));
+}
+
+module.exports = forEachRight;