Add launch button, reduce wait, and better checking for status of Dev Boxes for config flow

[huzaifa-d]

Summary of the pull request

• Adds a launch button to directly login to a Dev Box in the case of "Waiting For Active User Session" while applying a configuration.
• Reduces the wait time for a task to resume to complement the fix by the Dev Box team. It is now 30 seconds for normal logins but two minutes in the case of first time login initializations.
• Rechecks the status of a Dev Box before applying a configuration. Earlier if a Dev Box was started in the background during the configuration flow setup, the extension wasn't aware and failed the configuration task.

Validation steps performed

Manually across multiple Dev Boxes

PR checklist

• [ ] Closes #https://github.com/microsoft/devhome/issues/2992
• [ ] Closes #https://github.com/microsoft/devhome/issues/2976
• [ ] Tests added/passed
• [ ] Documentation updated