Add URL as common string (#38694)

* add URL as common string

* Update strings.json

homeassistant/components/huawei_lte/strings.json

@@ -21,7 +21,7 @@
       "user": {
         "data": {
           "password": "[%key:common::config_flow::data::password%]",
-          "url": "URL",
+          "url": "[%key:common::config_flow::data::url%]",
           "username": "[%key:common::config_flow::data::username%]"
         },
         "description": "Enter device access details. Specifying username and password is optional, but enables support for more integration features. On the other hand, use of an authorized connection may cause problems accessing the device web interface from outside Home Assistant while the integration is active, and the other way around.",

homeassistant/strings.json

@@ -31,6 +31,7 @@
         "host": "Host",
         "ip": "IP Address",
         "port": "Port",
+        "url": "URL",
         "usb_path": "USB Device Path",
         "access_token": "Access Token",
         "api_key": "API Key"