Follows [#2](https://huggingface.co/spaces/HuggingFaceBio/genbank-annotation-explorer/discussions/2), which added the English names. This adds the silhouettes that were only a backlog note there, and two interface fixes.
## Silhouettes
Every group now carries a [PhyloPic](https://www.phylopic.org) outline beside its name, so Porifera reads as a vase sponge and Choanoflagellata shows its collar and flagellum. `refresh_icons.py` resolves each taxon's NCBI id to a PhyloPic node and stores the SVG unmodified under `data/icons/`, with the map and credits in `data/icons.json`. Gradio serves them as static files, so each is cached once by the browser rather than riding along in every re-render.
Licensing is settled at build time rather than argued about later. Both the representative-image lookup and the clade fallback exclude NonCommercial and ShareAlike: NC is unsettled for a Space run by a company, and SA would reach into this repository the moment an icon were adapted. What ships is CC…
Label every group with an English name and fix the hover treatment (#2)
