fix: mapHelper 用 Mapbox pitch API 替代不存在的 dragPitch

src/core/mapHelper.js

@@ -22,14 +22,16 @@ class MapHelper {
       this._map.easeTo({ pitch: 45, bearing: 0, duration: 0 })
       this._map.dragRotate.enable()
       this._map.touchZoomRotate.enableRotation()
-      if (this._map.dragPitch) this._map.dragPitch.enable()
+      this._map.dragRotate.enablePitch?.()
+      this._map.touchPitch?.enable?.()
     }
 
     if (is2D) {
       this._map.easeTo({ pitch: 0, bearing: 0, duration: 0 })
       this._map.dragRotate.disable()
       this._map.touchZoomRotate.disableRotation()
-      if (this._map.dragPitch) this._map.dragPitch.disable()
+      this._map.dragRotate.disablePitch?.()
+      this._map.touchPitch?.disable?.()
     }
   }