G1L v0.8.1

Nexus API policy compliance

REMOVED: all use of the Nexus Mods API and personal API keys. Nexus Mods'
API Acceptable Use Policy forbids personal API keys in public-facing
applications, so the per-mod update checks introduced in 0.8.0 (and the
"Nexus updates" API-key field in Settings) are gone. Any previously saved
key stays on your machine and is simply ignored; you can delete it from
state.json / your Nexus account at any time.
Mod rows no longer show "NEW" update chips and the Mods header no longer
has a check-for-updates button. "Open on Nexus" links (plain web links)
are unaffected and still work.
CHANGED: the launcher's own update check now uses the public GitHub
Releases API (anonymous, no account or key) against the official mirror
github.com/ISKL23/G1L-Releases. The UPDATE / LATEST chip in the title bar
works exactly as before; clicking UPDATE opens the GitHub download page.

If/when G1L is registered as a Nexus API application (with proper SSO
login), per-mod update checks may return in a future version.