fix(modules/extranix): don't crash when having to many options

modules/nixos/extranix/default.nix

@@ -164,9 +164,14 @@ let
       }
       ''
         mkdir -p $out
-        jq -r '.options[].descriptionHTML | "--rawfile\n" + . + "\n" + .' $resultPath | xargs \
-          jq -c '.options |= map(.descriptionHTML as $desc | .descriptionHTML |= $ARGS.named.[$desc])' $resultPath \
-          > $out/$fileName
+        cp $resultPath new
+        for key in $(jq -r '.options | keys.[]' $resultPath); do
+          mv new curr
+          jq -r ".options[$key].descriptionHTML" $resultPath | xargs \
+            jq -c ".options[$key].descriptionHTML |= \$ARGS.named.desc" curr --rawfile desc \
+            > new
+        done
+        cp new $out/$fileName
       '';
 
   website =