update snackbar if new versionis available

Shared/Services/InputCursorHandler.cs

 using Microsoft.AspNetCore.Components.Web;
 using Microsoft.JSInterop;
-using System;
 using System.Threading.Tasks;
 
 namespace cwebplusApp.Shared.Services {

cwebplusApp.csproj

   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
     <ServiceWorkerAssetsManifest>service-worker-assets.js</ServiceWorkerAssetsManifest>
-    <Version>0.9.3</Version>
+    <Version>0.9.8</Version>
   </PropertyGroup>
 
   <ItemGroup>

wwwroot/css/app.css

     width: var(--mat-drawer-custom-width, 300px);
 }
 
+#snackbarDiv {
+    bottom: 30px;
+    width: 100%;
+    justify-content: center;
+    padding: 0 40px;
+}
+
+#snackbarDiv.show {
+    position: absolute;
+}
+
 #snackbar {
     visibility: hidden;
-    min-width: 50%;
-    margin: 40px;
     background-color: #333;
     color: #fff;
     text-align: center;
     border-radius: 10px;
     padding: 16px;
-    position: sticky;
     z-index: 1;
-    left: 50%;
-    bottom: 30px;
 }
 
 #snackbar.show {

wwwroot/index.html

         <a href="" class="reload">Reload</a>
         <a class="dismiss">🗙</a>
     </div>
-    
+
     <!-- The actual snackbar -->
-    <div id="snackbar">A new version of this app is available. Click <a id="reload" style="color:deepskyblue">here</a> to update.</div>
+    <div id="snackbarDiv">
+        <div id="snackbar">A new version of this app is available. Click <a id="reload" style="color:deepskyblue">here</a> to update. Eventually you have to restart the App manually.</div>
+    </div>
 
     <script src="_framework/blazor.webassembly.js"></script>
     <script src="_content/TG.Blazor.IndexedDB/indexedDb.Blazor.js"></script>
         let newWorker;
 
         function showUpdateBar() {
+            let snackbarDiv = document.getElementById('snackbarDiv');
             let snackbar = document.getElementById('snackbar');
             snackbar.className = 'show';
+            snackbarDiv.className = 'show';
         }
 
         function hideUpdateBar() {
+            let snackbarDiv = document.getElementById('snackbarDiv');
             let snackbar = document.getElementById('snackbar');
             snackbar.className = '';
+            snackbarDiv.className = '';
         }
 
         // The click event on the pop up notification
             let refreshing;
             navigator.serviceWorker.addEventListener('controllerchange', function () {
                 if (refreshing) return;
-                window.location.reload();
+                window.location = window.location.origin;
                 refreshing = true;
+                console.log('Reload to page ' + window.location.origin + ' on controller change.');
             });
         }
-
-        //if ('serviceWorker' in navigator) {
-        //    navigator.serviceWorker.register('service-worker.js')
-        //        .then((reg) => console.log('Service worker registered.', reg))
-        //        .catch((err) => console.log('Failed to register Service worker.', err));
-        //}
     </script>
+
     <script>
         function BlazorSetLocalStorage(key, value) {
             localStorage.setItem(key, value);

wwwroot/service-worker.js

 // This is because caching would make development more difficult (changes would not
 // be reflected on the first load after each change).
 
-const staticCacheName = 'site-static-v-0-9-3'; // IMPORTANT: CHANGE THE VERSION IN THIS NAME EVERY TIME THE APP IS DEPLOYED ON SERVER WITH CHANGES!!!
+const staticCacheName = 'site-static-v-0-9-8'; // IMPORTANT: CHANGE THE VERSION IN THIS NAME EVERY TIME THE APP IS DEPLOYED ON SERVER WITH CHANGES!!!
 const appsettings_url = 'appsettings.json';
 const assets = [
     './',