Add Support for Updating App and Changing Name Simultaneously with lc-serve deploy jcloud

[Sassun]

This feature request aims to add support for updating an app and changing its name simultaneously using the lc-serve deploy jcloud command. Currently, updating the app and changing its name requires two separate steps, which can be time-consuming and inefficient for users. I propose adding an optional --name flag to the lc-serve deploy jcloud app command to streamline the process.

Proposed Usage:

lc-serve deploy jcloud app --app-id <prev-app-id> --name

By adding the --name flag to the command, users can provide the desired new name for their app while also updating its content. This change will reduce the steps needed to update and rename an app, making it more user-friendly and efficient.