Add data description for lamarzocco (#131435)

homeassistant/components/lamarzocco/strings.json

@@ -25,7 +25,10 @@
       "bluetooth_selection": {
         "description": "Select your device from available Bluetooth devices.",
         "data": {
-          "mac": "Bluetooth device"
+          "mac": "[%key:common::config_flow::data::device%]"
+        },
+        "data_description": {
+          "mac": "Select the Bluetooth device that is your machine"
         }
       },
       "machine_selection": {
@@ -35,7 +38,8 @@
           "machine": "Machine"
         },
         "data_description": {
-          "host": "Local IP address of the machine"
+          "host": "Local IP address of the machine",
+          "machine": "Select the machine you want to integrate"
         }
       },
       "reauth_confirm": {