fix: Fix HDR detection on WebOS on compiled builds (#9185)

Fixes #9184

Author: avelad

lib/device/webos.js

@@ -29,15 +29,16 @@ shaka.device.WebOS = class extends shaka.device.AbstractDevice {
     try {
       const bridge = new PalmServiceBridge();
       bridge.onservicecallback = (n) => {
-        shaka.log.info(n);
+        shaka.log.info('WebOS: config support', n);
+        /** @type {!shaka.device.WebOS.PalmServiceBridgeResponse} */
         const configsJSON =
         /** @type {shaka.device.WebOS.PalmServiceBridgeResponse} */ (
             JSON.parse(n));
-        this.supportHdr_ = configsJSON.configs['tv.model.supportHDR'] ||
-            configsJSON.configs['tv.config.supportDolbyHDRContents'] || false;
+        this.supportHdr_ = configsJSON['configs']['tv.model.supportHDR'] ||
+          configsJSON['configs']['tv.config.supportDolbyHDRContents'] || false;
       };
       const configs = {
-        configNames: [
+        'configNames': [
           'tv.model.supportHDR',
           'tv.config.supportDolbyHDRContents',
         ],