Task Control: Check and terminate ongoing batch

[A2Sumie]

Is your feature request related to a problem? Please describe. I started using network sharing features to access my plotting rig through a smartphone. I chose a style and ran a large batch. As I shared the output folder through SFTP, I soon found out I've chosen an obsolete style. Sadly, modern smartphones kill background apps. The webui page reloaded after the browser being killed. What's left is a big orange GENERATE button. I have to start a new batch, interrupting it, having to wait some connection errors to clear, then I can start a new flow. A more common case is, one accidently closed the webui tab or refreshed it.

Describe the solution you'd like A task control. The webui can check if there is an ongoing task and its progress, and allowing me to terminate it, even at a fresh load or reload.

Describe alternatives you've considered Pressing control-c in console window and restarting the webui.

Additional context If this will be implemented, being able to retrieving prompts from the ongoing batch would be cool.