Update updater service and add translation for update prompt

frontend/src/app/_services/updater.service.ts

@@ -30,7 +30,7 @@ export class UpdaterService {
 
     updates.unrecoverable.subscribe(event => {
       console.error(event);
-      location.reload();
+      document.location.reload();
     });
 
     updates.versionUpdates.subscribe(evt => {
@@ -41,6 +41,18 @@ export class UpdaterService {
         case 'VERSION_READY':
           console.log(`Current app version: ${evt.currentVersion.hash}`);
           console.log(`New app version ready for use: ${evt.latestVersion.hash}`);
+          Swal.fire({
+            title: translate.instant('update_available'),
+            text: translate.instant('update_available_text'),
+            icon: 'info',
+            showCancelButton: true,
+            confirmButtonText: translate.instant('update_now'),
+            cancelButtonText: translate.instant('cancel')
+          }).then((result) => {
+            if (result.isConfirmed) {
+              document.location.reload();
+            }
+          });
           break;
         case 'VERSION_INSTALLATION_FAILED':
           console.log(`Failed to install app version '${evt.version.hash}': ${evt.error}`);

frontend/src/assets/i18n/en.json

@@ -185,6 +185,9 @@
         "file_too_big": "File too big",
         "password_min_length": "Password must be at least 6 characters long"
     },
+    "update_available": "Update available",
+    "update_available_text": "A new version of the application is available. Do you want to update now?",
+    "update_now": "Update now",
     "yes_remove": "Yes, remove",
     "confirm": "Confirm",
     "cancel": "Cancel",

frontend/src/assets/i18n/it.json

@@ -185,6 +185,9 @@
         "file_too_big": "File troppo grande",
         "password_min_length": "La password deve essere di almeno 6 caratteri"
     },
+    "update_available": "Aggiornamento disponibile",
+    "update_available_text": "È disponibile un aggiornamento per il gestionale. Vuoi aggiornare ora?",
+    "update_now": "Aggiorna ora",
     "yes_remove": "Si, rimuovi",
     "confirm": "Conferma",
     "cancel": "Annulla",