is_command always return true

[CymDeveloppement]

the new is_command function added in #185 PR always return true.

this test fail :

import { is_command } from \"std\"
        main {
            if is_command(\"cat\") {
                echo \"exist\"
            }

            if is_command(\"this_is_not_command_amber\") {
                echo \"exist\"
            }
        }

the correct implementation is :

$[ -x "\$(command -v {command})" ]$ failed {
        return false
    }
 return true

not

if (unsafe $command -v "{command}" > /dev/null$) {
    return true
}
return false

sorry i don't see this before

[Mte90]

Do you want to do a PR with the fix?

[CymDeveloppement]

Do you want to do a PR with the fix?

Ok