Prevent sleep icon change request

### Problem

Many times I click on the Suspend Icon when I want to Prevent Sleep.
This is because they have the same icon image (slightly different shape).

This is particularly important because the prevent sleep feature is activated when the pc going to sleep has consequences, for example for network connections or other long running processes, such as database migrations.

### Proposal

I don't have strong views which icon to change, but it does represent sleep for me, so I would suggest changing the one that Prevents Sleep.

### Prior Art (Optional)

_No response_