CT-1203 clamp meter: Simplify naming

Also fix case for HA naming convention

PR #2990

custom_components/tuya_local/devices/ct1203_clamp_meter.yaml

@@ -1,4 +1,4 @@
-name: Energy Meter 2CT
+name: Energy meter
 products:
   - id: tf6qp8t3hl9h7m94
     model: CT-1203