src/app.jsx carries its own SB_DESKTOP_VERSION for the compact download
table; src/components/ui/DownloadApps.jsx carries DESKTOP_VERSION for the
grid. Bumping one leaves the other pointing at a tag whose filenames no
longer exist — the failure tests/desktop-download-links.test.mjs was written
for, and which it caught here.
The i18n scan also learns that these dictionaries feed two clients. The
desktop client is a separate repository, so its keys can never appear in a
scan of this src/ and were being reported as dead strings to delete.