Add blog post about device name translations (#2094)

blog/2024-02-28-device-name-translations.md

@@ -0,0 +1,40 @@
+---
+author: Erik Montnemery
+authorURL: https://github.com/emontnemery
+title: "Introducing device name translations"
+---
+
+It's now possible to provide translations for device names, including support for
+static values to be used as placeholders.
+
+An example sensor with a translated device name:
+```python
+class TestEntity(SensorEntity):
+    """Example entity."""
+    
+    _attr_has_entity_name = True
+    
+    def __init__(self) -> None:
+        """Initialize example entity."""
+        self._attr_device_info = DeviceInfo(
+            translation_key="n_ch_power_strip",
+            translation_placeholders={"number_of_sockets": "2"},
+        )
+```
+The `strings.json` file would look like:
+```json
+{
+  "device": {
+    "n_ch_power_strip": {
+      "name": "Power strip with {number_of_sockets} sockets"
+    }
+  }
+}
+```
+
+The resulting device would be called `Power strip with 2 sockets`.
+
+A warning is logged when a translation placeholder is expected but not provided by the device.
+When this happens on a system that is not on a stable version (dev, nightly, or beta), an error will be raised to be able to catch the mistakes quickly.
+
+Please don't forget to be kind towards your translators, as they need to understand what kind of name or value will be passed in from the placeholder name ❤️.