Fix RustDesk

Dockerfile

@@ -554,6 +554,7 @@ RUN KASMVNC_VERSION="$(curl -fsSL "https://api.github.com/repos/kasmtech/KasmVNC
     cd /tmp && curl -o yq -fsSL "https://github.com/mikefarah/yq/releases/download/v${YQ_VERSION}/yq_linux_$(dpkg --print-architecture)" && install ./yq /usr/bin/ && rm -f yq && \
     apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/debconf/* /var/log/* /tmp/* /var/tmp/*
 ENV PATH="${PATH:+${PATH}:}/usr/lib/rustdesk"
+ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH:+${LD_LIBRARY_PATH}:}/usr/lib/rustdesk/lib"
 
 # Add custom packages right below this comment, or use FROM in a new container and replace entrypoint.sh or supervisord.conf, and set ENTRYPOINT to /usr/bin/supervisord