chore(arenasocial): Move size config out of signin

Relocates the `size` configuration key for arenasocial from within
the `signin` object to the top level of the `arenasocial` block
in `settings/config_0.json`.

[auto-enhanced]

Author: steveseguin

settings/config_0.json

@@ -389,11 +389,11 @@
     "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36",
     "signin": {
       "url": "https://arena.social/",
-      "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36",
-	  "size": {
-        "width": 1280,
-        "height": 720
-      }
-    }
+      "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36"
+    },
+	"size": {
+		"width": 1280,
+		"height": 720
+	}
   }
 }