[Feature] [P1] pc地图双指能快速缩放

[skyweaver213]

What problem does this feature solve?

目前pc端地图不支持手势双指缩放

What does the proposed API look like?

pc端支持双指缩放，例如增加一个参数控制可缩放速率

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Title: [Feature] [P1] PC map can be zoomed quickly with two fingers