make youtubedl appdata mountable

.containers/apps/youtubedl/Dockerfile

@@ -66,7 +66,7 @@ RUN \
     /tmp/* \
     /var/lib/apt/lists/* \
     /var/tmp/ \
-  && mkdir /data \
+  && mkdir -p /data/appdata \
   && chmod -R 777 /data \
   && chmod -R u=rwX,go=rX /app \
   && printf "umask %d" "${UMASK}" >> /etc/bash.bashrc \
@@ -76,7 +76,7 @@ COPY --from=builder --chown=apps:apps /app /app
 
 WORKDIR /app
 USER apps
-VOLUME /data
+VOLUME /data/appdata
 
 EXPOSE 17442
 COPY ./.containers/apps/youtubedl/entrypoint.sh /entrypoint.sh