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/overEvery.js

@@ -0,0 +1,34 @@
+var arrayEvery = require('./_arrayEvery'),
+    createOver = require('./_createOver');
+
+/**
+ * Creates a function that checks if **all** of the `predicates` return
+ * truthy when invoked with the arguments it receives.
+ *
+ * Following shorthands are possible for providing predicates.
+ * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
+ * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Util
+ * @param {...(Function|Function[])} [predicates=[_.identity]]
+ *  The predicates to check.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var func = _.overEvery([Boolean, isFinite]);
+ *
+ * func('1');
+ * // => true
+ *
+ * func(null);
+ * // => false
+ *
+ * func(NaN);
+ * // => false
+ */
+var overEvery = createOver(arrayEvery);
+
+module.exports = overEvery;