Handle CTRL-C from inside fzf better

[tonynajjar]

root@logi-XMG-CORE-REN-M20:~# rtecho
*CTRL-C from inside fzf search window*

ros2 topic echo
usage: ros2 topic echo [-h] [--spin-time SPIN_TIME] [-s] [--no-daemon]
                       [--qos-profile {unknown,system_default,sensor_data,services_default,parameters,parameter_events,action_status_default}] [--qos-depth N]
                       [--qos-history {system_default,keep_last,keep_all,unknown}] [--qos-reliability {system_default,reliable,best_effort,unknown}]
                       [--qos-durability {system_default,transient_local,volatile,unknown}] [--csv] [--field FIELD] [--full-length] [--truncate-length TRUNCATE_LENGTH] [--no-arr]
                       [--no-str] [--lost-messages] [--no-lost-messages] [--raw] [--filter FILTER_EXPR]
                       topic_name [message_type]
ros2 topic echo: error: the following arguments are required: topic_name