Define grace period for pointer lock escape release

src/runtime-three/runtime-host.ts

@@ -333,6 +333,7 @@ interface RuntimeWaterContactUniformBinding {
 const FALLBACK_FACE_COLOR = 0xf2ece2;
 const RUNTIME_CLOCK_PUBLISH_INTERVAL_SECONDS = 1 / 30;
 const WATER_REFLECTION_UPDATE_INTERVAL_MS = 96;
+const POINTER_LOCK_ESCAPE_RELEASE_GRACE_MS = 500;
 const CAMERA_RIG_POINTER_LOOK_SENSITIVITY = 0.004;
 const CAMERA_RIG_GAMEPAD_LOOK_SPEED = 2.2;
 const DIALOGUE_ATTENTION_CAMERA_TRANSITION_DURATION_SECONDS = 0.35;