pkg/aflow/tool/codeeditor: add actual implementation #19109

Job	Run time
dashboard	2m 16s
race	9m 11s
aux	3m 30s
build	3m 59s
race_dashboard	3m 59s
gvisor	4m 0s
old	7m 24s
arch (presubmit_arch_linux)	10m 38s
arch (presubmit_arch_netbsd)	3m 57s
arch (presubmit_arch_darwin)	3m 48s
arch (presubmit_arch_executor)	3m 21s
arch (presubmit_arch_openbsd)	3m 57s
arch (presubmit_arch_freebsd)	6m 36s
arch (presubmit_arch_windows)	3m 35s
	1h 10m 11s

Provide feedback