v0.9.2

fix(server): outlive the reverse proxy's idle connection pool (#1116)

Node's default keepAliveTimeout is 5s while Caddy and nginx reuse idle
upstream connections for 30-60s, so the proxy periodically wrote a request
into a socket the server had just closed and the user saw a 502 connection
reset. keepAliveTimeout is now 75s with headersTimeout just above it, on
both listen paths. Bumps desktop to 0.9.2 for the release tag.