[Bug] label 默认防重叠策略不符合预期

[kkxxkk2019]

Version

latest

Link to Minimal Reproduction

none

Steps to Reproduce

const spec = {
  "direction": "vertical",
  "type": "common",
  "color": [
    "#61BA95",
    "#335B4A",
    "#7A94BF",
    "#2E5599",
    "#B9A582",
    "#735A40",
    "#BC9B44",
    "#99533D",
    "#809E9D",
    "#2E8582"
  ],
  "series": [
    {
      "type": "bar",
      "stack": true,
      "percent": true,
      "bar": {
        "state": {
          "hover": {
            "stroke": "#000",
            "lineWidth": 1
          }
        }
      },
      "label": {
        "visible": true,
        "position": "inside",
        overlap: true,
        smartInvert: true
      },
      "xField": "_editor_dimension_field",
      "yField": "_editor_value_field",
      "dataId": "0",
      "seriesField": "_editor_type_field"
    }
  ],
  "legends": {
    "id": "legend-discrete",
    "visible": true,
    "autoPage": false,
    "position": "start",
    "interactive": false
  },
  "region": [
    {
      "id": "region-0",
      "style": {}
    }
  ],
  "tooltip": {
    "visible": true
  },
  "axes": [
    {
      "orient": "left",
      "id": "axis-left",
      "type": "linear",
      "label": {
        "autoLimit": false
      },
      "maxWidth": null,
      "maxHeight": null
    },
    {
      "orient": "bottom",
      "id": "axis-bottom",
      "type": "band",
      "label": {
        "autoLimit": false
      },
      "maxWidth": null,
      "maxHeight": null,
      "trimPadding": false
    }
  ],
  "data": [
    {
      "id": "0",
      "sourceKey": "total",
      "values": [
        {
          "_editor_dimension_field": "D01",
          "_editor_value_field": "  54.8",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D02",
          "_editor_value_field": " 112.1",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D03",
          "_editor_value_field": "  63.6",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D04",
          "_editor_value_field": "  37.6",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D05",
          "_editor_value_field": "  79.7",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D06",
          "_editor_value_field": " 137.9",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D07",
          "_editor_value_field": " 120.1",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D08",
          "_editor_value_field": " 103.3",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D09",
          "_editor_value_field": " 394.8",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D10",
          "_editor_value_field": " 199.5",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D11",
          "_editor_value_field": "  72.3",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D12",
          "_editor_value_field": "  51.1",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D13",
          "_editor_value_field": " 112.0",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D14",
          "_editor_value_field": " 174.5",
          "_editor_type_field": " PM2_5"
        },
        {
          "_editor_dimension_field": "D15",
          "_editor_value_field": " 130.5",
          "_editor_type_field": " PM2_5"
        }
      ]
    }
  ],
  "width": 640,
  "height": 360,
  "background": "transparent"
};

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderAsync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

Current Behavior

1. 文本为居中（向右偏移）
2. 显示配置 overlap: true 的效果和没有配置不一致

不配置	overlap: true

Expected Behavior

NA

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response

[xiaoluoHe]

@kkxxkk2019 不居中是因为数值字符串以空格开头了