ui : show only the load state and the provider in the pane header
The line carried the compat wording between them, which repeated what the
provider's own icon and the Load tab already say. A provider that cannot
load or unload has no load state to report, so its models read Available
rather than Not loaded. The compat wording lives on in the provider title.
Assisted-by: pi:llama.cpp/DeepSeek-V4.1-Flash