update asset version

public/service-worker.js

-const CACHE_NAME = 'static-cache-v12';
+const CACHE_NAME = 'static-cache-v13';
 const FILES_TO_CACHE = [
   '/offline.html',
-  '/static/v12/css/materialize.min.css',
-  '/static/v12/css/material-icons.css',
-  '/static/v12/css/local.css',
-  '/static/v12/js/jquery-3.4.1.min.js',
-  '/static/v12/js/materialize.min.js',
-  '/static/v12/js/travelynx-actions.min.js',
-  '/static/v12/js/autocomplete.min.js',
-  '/static/v12/js/geolocation.min.js',
+  '/static/v13/css/materialize.min.css',
+  '/static/v13/css/material-icons.css',
+  '/static/v13/css/local.css',
+  '/static/v13/js/jquery-3.4.1.min.js',
+  '/static/v13/js/materialize.min.js',
+  '/static/v13/js/travelynx-actions.min.js',
+  '/static/v13/js/autocomplete.min.js',
+  '/static/v13/js/geolocation.min.js',
 ];
 
 self.addEventListener('install', (evt) => {

public/static/css/material-icons.css

@@ -2,12 +2,12 @@
   font-family: 'Material Icons';
   font-style: normal;
   font-weight: 400;
-  src: url(/static/v12/fonts/MaterialIcons-Regular.eot); /* For IE6-8 */
+  src: url(/static/v13/fonts/MaterialIcons-Regular.eot); /* For IE6-8 */
   src: local('Material Icons'),
        local('MaterialIcons-Regular'),
-       url(/static/v12/fonts/MaterialIcons-Regular.woff2) format('woff2'),
-       url(/static/v12/fonts/MaterialIcons-Regular.woff) format('woff'),
-       url(/static/v12/fonts/MaterialIcons-Regular.ttf) format('truetype');
+       url(/static/v13/fonts/MaterialIcons-Regular.woff2) format('woff2'),
+       url(/static/v13/fonts/MaterialIcons-Regular.woff) format('woff'),
+       url(/static/v13/fonts/MaterialIcons-Regular.ttf) format('truetype');
 }
 
 .material-icons {

public/static/manifest.json

@@ -3,27 +3,27 @@
   "short_name": "Travelynx",
   "scope": "/",
   "icons": [{
-    "src": "/static/v12/icons/icon-128x128.png",
+    "src": "/static/v13/icons/icon-128x128.png",
       "sizes": "128x128",
       "type": "image/png"
     }, {
-      "src": "/static/v12/icons/icon-144x144.png",
+      "src": "/static/v13/icons/icon-144x144.png",
       "sizes": "144x144",
       "type": "image/png"
     }, {
-      "src": "/static/v12/icons/icon-152x152.png",
+      "src": "/static/v13/icons/icon-152x152.png",
       "sizes": "152x152",
       "type": "image/png"
     }, {
-      "src": "/static/v12/icons/icon-192x192.png",
+      "src": "/static/v13/icons/icon-192x192.png",
       "sizes": "192x192",
       "type": "image/png"
     }, {
-      "src": "/static/v12/icons/icon-256x256.png",
+      "src": "/static/v13/icons/icon-256x256.png",
       "sizes": "256x256",
       "type": "image/png"
     }, {
-      "src": "/static/v12/icons/icon-512x512.png",
+      "src": "/static/v13/icons/icon-512x512.png",
       "sizes": "512x512",
       "type": "image/png"
     }],

templates/layouts/default.html.ep

@@ -9,7 +9,7 @@
 	<meta name="apple-mobile-web-app-capable" content="yes">
 	<meta name="apple-mobile-web-app-status-bar-style" content="black">
 	<meta name="apple-mobile-web-app-title" content="Weather PWA">
-	% my $av = 'v12'; # asset version
+	% my $av = 'v13'; # asset version
 	<link rel="apple-touch-icon" href="/static/<%= $av %>/icons/icon-152x152.png">
 	<link rel="manifest" href="/static/<%= $av %>/manifest.json">
 	%= stylesheet "/static/${av}/css/materialize.min.css"