Add jellyfin

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/docker/shlink-web-client/entrypoint.sh

@@ -1,8 +1,9 @@
 #!/usr/bin/env sh
 
 set -o errexit
+set -o nounset
 
-if [ -n "$SHLINK_SERVER_URL" ] && [ -n "$SHLINK_SERVER_API_KEY" ]; then
+if [ -n "${SHLINK_SERVER_URL:-}" ] && [ -n "${SHLINK_SERVER_API_KEY:-}" ]; then
   SHLINK_SERVER_NAME="${SHLINK_SERVER_NAME:-Shlink}"
   SHLINK_SERVER_FORWARD_CREDENTIALS="${SHLINK_SERVER_FORWARD_CREDENTIALS:-false}"
   echo "[{\"name\":\"${SHLINK_SERVER_NAME}\",\"url\":\"${SHLINK_SERVER_URL}\",\"apiKey\":\"${SHLINK_SERVER_API_KEY}\",\"forwardCredentials\":${SHLINK_SERVER_FORWARD_CREDENTIALS}}]" > /var/www/shlink-web-client/servers.json