Dremel to Duotecno: add host field description (#104776)

Co-authored-by: Franck Nijhof <git@frenck.dev>

homeassistant/components/dremel_3d_printer/strings.json

@@ -4,6 +4,9 @@
       "user": {
         "data": {
           "host": "[%key:common::config_flow::data::host%]"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your Dremel 3D printer."
         }
       }
     },

homeassistant/components/dunehd/strings.json

@@ -5,6 +5,9 @@
         "description": "Ensure that your player is turned on.",
         "data": {
           "host": "[%key:common::config_flow::data::host%]"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your Dune HD device."
         }
       }
     },

homeassistant/components/duotecno/strings.json

@@ -6,6 +6,9 @@
           "host": "[%key:common::config_flow::data::host%]",
           "username": "[%key:common::config_flow::data::username%]",
           "password": "[%key:common::config_flow::data::password%]"
+        },
+        "data_description": {
+          "host": "The hostname or IP address of your Duotecno device."
         }
       }
     },