Ability to use global flags when executing actions from UI

[davidferlay]

Observed

• In CLI, all actions share the same common options:

Flags:
  -h, --help                             help for plasmactl
      --keyring-passphrase string        Passphrase for keyring encryption/decryption
      --keyring-passphrase-file string   File containing passphrase for keyring encryption/decryption
      --log-format LogFormat             log format, can be: pretty, plain or json (default pretty)
      --log-level logLevelStr            log level, same as -v, can be: DEBUG, INFO, WARN, ERROR or NONE (default NONE)
  -q, --quiet                            disable output to the console
  -v, --verbose count                    log verbosity level, use -vvvv DEBUG, -vvv INFO, -vv WARN, -v ERROR
      --version                          version for plasmactl

• In Web UI, there is no way to pass these options:
  

Observed

• Would be great to have ability to use some of these common options also in Web UI:
  • --keyring-passphrase
  • --keyring-passphrase-file
  • --log-format
  • --log-level
  • --quiet
  • --verbose count
• Some of them do not make sense in UI
  • --help
  • --version