Solaire Vitra S2: update naming

- Remove all branding from top level name.
- Remove "Smart" from names, as it is implied by inclusion in HA
- remove duplication of top level name from product specific name

PR #1770

custom_components/tuya_local/devices/solaire_vitra_smart_heater_s2.yaml

@@ -1,7 +1,7 @@
-name: Smart Heater S2
+name: Panel heater
 products:
   - id: 8fczfuyd5dknvltq
-    name: Solaire Vitra smart heater S2
+    name: Solaire Vitra S2
 primary_entity:
   entity: climate
   dps: