German translation of dark oak sign is inconsistent with other dark oak items.

The Dark Oak Sign is translated into "Dunkeleichenschild", which is technically correct, but inconsistent with every other dark oak item.

All other Dark Oak items are translated as "Schwarzeichen...", for example Schwarzeichenschalter (Dark Oak Button), Schwarzeichenzauntor (Dark Oak Fence Gate), etc.

So please rename the "Dunkeleichenschild" to the "Schwarzeichenschild" to make it consistent with the other Dark Oak items.