Describe the bug

Average value shown in LossAdjustment widget for time series data is misleading:

• Unclear that constant, time series, and custom period losses are all applied (additive).
• "Lifetime" does not apply to CSP losses for sf_adjust and adjust variables.
• If time series losses only apply to a few timesteps, average value is too small to show with on decimal place, so makes it look like loss is zero (0.0%).

Purpose of text is to help users see whether any losses are specified without clicking the Edit losses button. Possible solution is to show whether constant, time series, and/or custom losses are enabled or not instead of showing average value.

To Reproduce

Steps to reproduce the behavior:

1. Create a Physical Trough caes.
2. Go to System Control page, and note "Lifetime losses: None" for system availability. Physical Trough does not do lifetime simulations so this is misleading.

Screenshots