Fix variant-aware fleet card map labels (Refs #150)

src/routes/+page.svelte

@@ -552,6 +552,9 @@
                                         telemetry={server.telemetry}
                                         players={server.last_players}
                                         map={server.last_map ?? server.map}
+                                        game={server.game}
+                                        mapSlug={server.map_slug}
+                                        gameMode={server.game_mode}
                                         capacity={currentCapacity(server, observationNow())}
                                         gametype={server.last_gametype}
                                         roster={server.roster}