How 1Password CLI detects configuration directories

1Password CLI configuration directories default to:

• ${XDG_CONFIG_HOME}/op when ${XDG_CONFIG_HOME} is set
• ~/.config/op when ${XDG_CONFIG_HOME} is not set

1Password CLI detects the configuration directory to read or write to in this order of precedence:

1. A directory specified with --config
2. A directory set with the OP_CONFIG_DIR environment variable.
3. ~/.op (following go-homedir to determine the home directory)
4. ${XDG_CONFIG_HOME}/.op
5. ~/.config/op (following go-homedir to determine the home directory)
6. ${XDG_CONFIG_HOME}/op