Added logged in username display

01-frontend/public/locales/de/translation.json

@@ -107,5 +107,6 @@
   "discount100": "Rabatt in %",
   "deleteProduct": "Produkt löschen",
   "description": "Beschreibung",
-  "images": "Bilder"
+  "images": "Bilder",
+  "loggedInAs": "Angemeldet als"
 }

01-frontend/public/locales/en/translation.json

@@ -107,5 +107,6 @@
   "discount100": "Discount in %",
   "deleteProduct": "Delete Product",
   "description": "Description",
-  "images": "Images"
+  "images": "Images",
+  "loggedInAs": "Logged in as"
 }

01-frontend/src/helper/navbar/NavBar.tsx

@@ -43,6 +43,11 @@ export default function NavBar() {
     const pages = pageKeys.map(key => ({ key, label: t(key) }));
     const settings = user
         ? [
+            {
+                key: 'email',
+                label: `${t('loggedInAs')}: ${user.email}`,
+                disabled: true // wir nutzen dieses Flag gleich zur Erkennung
+            },
             { key: 'account', label: t('account') },
             { key: 'orders', label: t('orders') },
             { key: 'logout', label: t('logout') }
@@ -234,8 +239,14 @@ export default function NavBar() {
                             open={Boolean(anchorElUser)}
                             onClose={() => setAnchorElUser(null)}
                         >
-                            {settings.map(({ key, label }) => (
-                                <MenuItem key={key} onClick={() => handleCloseUserMenu(key)}>
+                            {settings.map(({ key, label, disabled }) => (
+                                <MenuItem
+                                    key={key}
+                                    onClick={() => {
+                                        if (!disabled) handleCloseUserMenu(key);
+                                    }}
+                                    disabled={disabled}
+                                >
                                     <Typography sx={{ textAlign: "center" }}>{label}</Typography>
                                 </MenuItem>
                             ))}