Be able to name open bot tabs

[dmvtech]

Every open bot has a tab titled 'Live Chat'. This doesn't help when you have multiple tabs open; causes hunting around between tabs for the right bot cumbersome.

Describe the solution you'd like Would love to be able to be able to name/rename a tab of a bot. From the Open Bot dialog, or maybe the main menu. Related: https://github.com/microsoft/BotFramework-Emulator/issues/2227

Additional thoughts

Maybe even putting locale in the tab as well. For example, if I named my bot CustomerServiceBot, it could be CustomerServiceBot | en-us. Related: https://github.com/microsoft/BotFramework-Emulator/issues/2268

If Emulator was launched from Composer, it would set this automatically. For example, after clicking Test in Emulator, the tab in Emulator would have MultiLang7696 as the tab title automatically.

[enhancement]