Use dayjs strings directly.

en.json

@@ -44,10 +44,11 @@
         }
     },
     "dayjs": {
-        "lastDay": "Yesterday at",
-        "sameDay": "Today at",
-        "nextDay": "Tomorrow at",
-        "last": "Last",
-        "at": "at"
+        "lastDay": "[Yesterday at] LT",
+        "sameDay": "[Today at] LT",
+        "nextDay": "[Tomorrow at] LT",
+        "lastWeek": "[Last] dddd [at] LT",
+        "nextWeek": "dddd [at] LT",
+        "sameElse": "L"
     }
 }
\ No newline at end of file