Add units to Z-Wave JS Node Config inputs (#8869)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

src/panels/config/integrations/integration-panels/zwave_js/zwave_js-node-config.ts

@@ -230,6 +230,9 @@ class ZWaveJSNodeConfig extends SubscribeMixin(LitElement) {
           .disabled=${!item.metadata.writeable}
           @value-changed=${this._numericInputChanged}
         >
+          ${item.metadata.unit
+            ? html`<span slot="suffix">${item.metadata.unit}</span>`
+            : ""}
         </paper-input> `;
     }