Clicking Load/Unload (or any refreshLocal) re-ran loadCachedModels, which
blanked the HF/GGUF lists to "Loading…" every time. That collapsed the page
height and threw the viewport to the end, so a whisper-server unload looked
like it "did nothing and scrolled to the bottom" even though it worked.

Now the "Loading…" placeholder only shows on the first (empty) load; on a
refresh the existing rows stay in place and the scroll position is captured
and restored around the re-render.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>