Add pv-power jsx template

templates/jsx/pv-power/pv-power-example.jsx

@@ -0,0 +1,18 @@
+---
+label: pv-power voorbeeld
+description: PV-productie met forecast
+type: pv-power
+author: maik
+---
+
+import React from 'react';
+
+export default function PvPowerTemplate({ data }) {
+  const power = data?.pv_power ?? 0;
+  return (
+    <div className="widget-pv">
+      <div className="widget-pv__value">{power.toFixed(0)}</div>
+      <div className="widget-pv__unit">W</div>
+    </div>
+  );
+}