Add Elecrow ThinkNode M1 entry to device models

Author: MrAlders0n

content/device-models.json

@@ -59,7 +59,14 @@
       "txPower": 20,
       "notes": "EBYTE E22-900M30S, 1W PA: 20dBm input → 30dBm output"
     },
-
+    {
+      "manufacturer": "Elecrow ThinkNode-M1",
+      "shortName": "Elecrow ThinkNode M1",
+      "power": 0.3,
+      "platform": "nrf52",
+      "txPower": 22,
+      "notes": "Elecrow ThinkNode M1"
+    },
     {
       "manufacturer": "Heltec V2",
       "shortName": "Heltec V2",