Add variant cockpit log entry detail needle

Lately it seems to be clicking on one which doesn't show either
of the properties we currently detect above the fold, so let's
add another.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/cockpit/logs_entry_detail-codefile-20240816.json

@@ -0,0 +1,15 @@
+{
+  "area": [
+    {
+      "height": 16,
+      "type": "match",
+      "xpos": 263,
+      "width": 81,
+      "ypos": 519
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "cockpit_logs_detail"
+  ]
+}