Update device: T300 by TP-Link (#3160)

Co-authored-by: matheusarnold <51102562+matheusarnold@users.noreply.github.com>

Author: github-actions[bot]

custom_components/battery_notes/data/library.json

@@ -9053,6 +9053,13 @@
             "model": "ZSE70",
             "battery_type": "CR123A",
             "battery_quantity": 2
+        },
+        {
+            "manufacturer": "TP-Link",
+            "model": "T300",
+            "hw_version": "1.0",
+            "battery_type": "AAA",
+            "battery_quantity": 2
         }
     ]
 }