feat(`btop`): Add feature. #7

Job	Run time
test-global	7s
test-scenarios (atuin.sh)	40s
test-autogenerated (atuin.sh, debian:latest)	19s
test-scenarios (btop)	34s
test-autogenerated (atuin.sh, ubuntu:latest)	27s
test-autogenerated (atuin.sh, mcr.microsoft.com/devcontainers/base:ubuntu)	35s
test-autogenerated (btop, debian:latest)	13s
test-autogenerated (btop, ubuntu:latest)	24s
test-autogenerated (btop, mcr.microsoft.com/devcontainers/base:ubuntu)	33s
	3m 52s

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