ref(rrweb): allow multi touch gestures to be shown for mobile replays

[michellewzhang]

looks like this with fake test data:

Screen.Recording.2024-05-16.at.6.32.53.PM.mov

closes getsentry/sentry#70588

[michellewzhang]

this is assuming we adjust the data type to

// mousemoveData
{
    "type": 3,
    "timestamp": 1713999610580,
    "data": {
        "source":  IncrementalSource.TouchMove,
        "positions": [{
          "id": 0,
          "x": 149.436,
          "y": 433.929,
        },
       {
          "id": 1,
          "x": 243.436,
          "y": 155.929,
        }],
        "pointerType": 2
        "pointerId": 2,
    }
}

[bruno-garcia]

I imagined with multi touch we'd see two circles in parallel, representing two fingers. Is that possible?

[michellewzhang]

I imagined with multi touch we'd see two circles in parallel, representing two fingers. Is that possible?

@bruno-garcia yeah definitely - the demo video in the description is just some fake data i made up, what it will actually look like is just rendering exactly what the sdk sends us in terms of x/y positions. so we will mirror exactly what touches the user is doing