feat: make server own products

lib/l10n/app_en.arb

@@ -4,6 +4,7 @@
   "barTabs": "Bar Tabs",
   "products": "Products",
   "addProduct": "Add product",
+  "productsManagedOnWebsite": "Products are managed on the website. Here you can change the stock and the picture.",
   "noProductsYet": "No products yet.",
   "addFirstProduct": "Add your first product to start selling.",
   "manageProducts": "Manage products",
@@ -276,6 +277,10 @@
   "simulatedUpdateNotes": "Bug fixes and performance improvements.",
   "remoteActivity": "Remote activity",
   "remoteActivityHistory": "Recent remote activity",
+  "offline": "Offline",
+  "offlineDescription": "No connection to the server. The tablet keeps working: everything is sent as soon as the connection is back.",
+  "syncProblem": "Sync problem",
+  "syncProblemDescription": "Changes from the website don't reach this tablet. Error:",
   "syncNow": "Sync now",
   "syncing": "Syncing…",
   "lastSync": "Last sync: {time}",