Add static directory to Docker image

The static route was added but the directory wasn't included in the
Docker build, causing the container to panic on startup.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: mattwoberts

Dockerfile

@@ -53,6 +53,7 @@ COPY --from=server-builder /server/views /app/views
 COPY --from=server-builder /server/locale /app/locale
 COPY --from=server-builder /server/LICENSE /app
 COPY --from=server-builder /server/fider /app
+COPY --from=server-builder /server/static /app/static
 
 COPY --from=ui-builder /ui/favicon.png /app
 COPY --from=ui-builder /ui/dist /app/dist