[FEAT] Conky theme

### Description

While not a system component, it's interesting as part of screenshots I think. Though that would need finding arguments of the running Conky process, which seems not possible with the current processing utils… Using the command module would require OS-specific magic to dig `/proc` or whatever…

### Motivation

You can't omit the Conky theme on a screenshot, really.

### Additional context

_No response_