fix(kometa): fix config.yml sed patterns, add Quickstart integration

- Fix sed commands for plex token and tmdb apikey (empty values in template, not hash placeholders)
- Use section-aware sed to avoid replacing wrong token/apikey fields
- Add Kometa Quickstart web UI on port 7171

ct/kometa.sh

@@ -61,5 +61,5 @@ description
 
 msg_ok "Completed successfully!\n"
 echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
-echo -e "${INFO}${YW} Access the LXC at following IP address:${CL}"
-echo -e "${TAB}${GATEWAY}${BGN}${IP}${CL}"
+echo -e "${INFO}${YW} Access Kometa Quickstart:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:7171${CL}"