Clarify CLI vs. Keybind Actions documentation #9268

Job	Run time
prettier	41s
test	3m 4s
typos	37s
alejandra	34s
build-linux-libghostty	1m 2s
build-macos	4m 32s
build (namespace-profile-ghostty-md, aarch64-linux)	1m 6s
build-macos-matrix	11m 40s
build (namespace-profile-ghostty-md, x86_64-linux)	1m 49s
build-bench	1m 6s
build (namespace-profile-ghostty-md, x86-windows-gnu)	1m 0s
build-nix (namespace-profile-ghostty-md)	2m 29s
build (namespace-profile-ghostty-md, x86_64-windows-gnu)	1m 5s
build-windows	6m 19s
build-nix (namespace-profile-ghostty-md-arm64)	5m 4s
GTK adwaita=true x11=true	2m 8s
test-macos	3m 44s
GTK adwaita=true x11=false	1m 4s
GTK adwaita=false x11=true	1m 4s
GTK adwaita=false x11=false	1m 4s
	51m 12s

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