update default metric to match the one on the other html sites

this also seems like a more interresting metric, as the other HTMLs did not seem to bother adding the combined few. This suggests that the hot-metric is mostly used and should be the default also here

Author: rotmanjanez

index.html

@@ -485,7 +485,7 @@ <h2>Detailed Comparison</h2>
     "opensource": {"yes": true, "no": true},
     "hardware": {"cpu": true, "gpu": false},
     "tuned": {"no": true, "yes": false},
-    "metric": "combined",
+    "metric": "hot",
     "queries": [],
 };