feat(scene): replace G-key map transition with mouse-click warp & entrance interaction

src/sim/input.ts

@@ -47,7 +47,7 @@ const LOAD_KEYS = new Set(['KeyL'])
 /** Keys that toggle the automap. `Tab` is where Diablo II puts it. */
 const MAP_KEYS = new Set(['Tab', 'KeyM'])
 /** Keys that take the stairs, cave mouth or portal the player is standing on. */
-const USE_KEYS = new Set(['KeyG'])
+const USE_KEYS = new Set<string>()
 /** Keys that cast a town portal. */
 const PORTAL_KEYS = new Set(['KeyP'])
 /** Keys that open the waypoint destination list. */