* create a custom type - `LocalTime`
* show the time depending on locale in CLI, use UTC by default and for API responses
  * consider clones, snapshots, instance, pools
* update time display format: `2006-01-02 15:04:05 UTC` -> `2006-01-02 15:04:05 +00:00`
* add commands to view and manage CLI settings
  * `dblab config show-global`
  * `dblab config set-global`
* process environment variable `TZ` which overrides CLI settings from a file