Migrate datetime services to support translations (#96318)

Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>

homeassistant/components/datetime/services.yaml

@@ -1,13 +1,9 @@
 set_value:
-  name: Set Date/Time
-  description: Set the date/time for a datetime entity.
   target:
     entity:
       domain: datetime
   fields:
     datetime:
-      name: Date & Time
-      description: The date/time to set. The time zone of the Home Assistant instance is assumed.
       required: true
       example: "2022/11/01 22:15"
       selector:

homeassistant/components/datetime/strings.json

@@ -4,5 +4,17 @@
     "_": {
       "name": "[%key:component::datetime::title%]"
     }
+  },
+  "services": {
+    "set_value": {
+      "name": "Set date/time",
+      "description": "Sets the date/time for a datetime entity.",
+      "fields": {
+        "datetime": {
+          "name": "Date & Time",
+          "description": "The date/time to set. The time zone of the Home Assistant instance is assumed."
+        }
+      }
+    }
   }
 }