[FEAT] Add terminal title

[awaitimport]

We should implement terminal title similar to below. We currently don't have this feature.

1. Add --title flag to CLI so that user can explicitly specify the title. By default terminal title is equivalent to the conversation title.
2. We should be able to disable terminal title either from env variable WORKFLOWFIESTA_DISABLE_TERMINAL_TITLE or from the config file (config file takes the precedence over env vars). We've already implemented that.
3. Add a new setting on settings panel to toggle terminal title.