Add some stuff

src/i18n/common/de.json

@@ -240,5 +240,9 @@
   },
   "ranking": {
     "heading": "{# mode #} Rangliste"
+  },
+  "404": {
+    "title": "404 - Seite nicht gefunden",
+    "description": "Seite nicht gefunden"
   }
 }

src/i18n/common/en.json

@@ -180,5 +180,9 @@
   },
   "stats": {
     "title": "Fight Statistics"
+  },
+  "404": {
+    "title": "404 - Page not found",
+    "description": "Page not found"
   }
 }