[Bug] The legend is blurry in svg rendering mode

### Version

5.4.3

### Link to Minimal Reproduction

https://echarts.apache.org/examples/zh/editor.html?c=bar-simple&renderer=svg&code=PYBwLglsB2AEC8sDeAoW7YCIDGwA2wATpgFywDaaG1mAxAKwCMAggGwCirmANFdenXYAOegBEAnADFMfWAF1eNMMHyQQpZLOoBnABbAA7mQBmAQzzaAprIC-ijJjyWA5pegATDan4OARsDBlAFsNAAZ7H0wIXGgNTEJgAFcPACVLbDAeLQcIMEsggHUIdzBdDUYAFgj-KLyggAlLCGddTLJK6ppc_IBxU3UyACYq22rMZ0Jir2yBZQHYcJmsf0DgELIAZkWfASdjNthGQc6HSZaD4ZOBGLBTCGgAGVNfSzwNMEJE62o7WUwAD2Y_wg2mmOywYAAniBLHEAG7mL5ZH5jSFAkFgnaYKEwuLYUx5ZxESHIrHuAmmDSUcE0QCeGYA7t0YpJpWAZg2Z_Dkoz-VkmllBZGpO28LKw0FMQVhZEwgHBjQDgFoxFUqmVcajipctTMRVTRtLdsABrOLKW5vHUOPDPV6Y0UOPSGDRmCzfUW_W2YXxaoolMrtVjmgTk25UpbgkW2yLiyVxBkq0OizAIvBIsihAB09AA7KF6PGfG6I-hw4WHFGNZg2RyS1gkymFmmKkI8_wbM2ueCCz5i-DMGW4vL2QGIdDy57tc3MHrTIbjQFzFWsZaXm8yN2E_aDI7zFZm52aR6vcVSuV_ROg5TBc3qGvC72JeXYwvb7WNemKoNxLnq3vbTeI3fo2lSshx7F8wgzQYrwwVtbXbHYYIwLkbCAA

### Steps to Reproduce

option = {
"color": [
"#51A6E6",
"#E85D9F"
],
"tooltip": {
show: false
},
"legend": {
"bottom": 0,
"icon": "roundRect",
"itemWidth": 14,
"itemHeight": 14,
"itemGap": 24,
},
"grid": {
"top": 0,
"bottom": 30,
"left": 12,
"right": 24,
"containLabel": true
},
"xAxis": {
"type": "value",
},
"yAxis": {
"type": "category",
"data": [
"项目1",
"项目2",
]
},
"series": [
{
"name": "指标1111111",
"type": "bar",
"stack": "total",
"label": {
"show": false
},
"barWidth": 16,
"data": [
{
"name": "项目1",
"value": 0.5705
},
{
"name": "项目2",
"value": 0.48
}
]
},
{
"name": "指标2",
"type": "bar",
"stack": "total",
"label": {
"show": false
},
"barWidth": 16,
"data": [
{
"name": "项目1",
"value": 0.4295
},
{
"name": "项目2",
"value": 0.52
}
]
}
]
}

### Current Behavior

When the legend renders the path tag with transform="translate(x y)", if x or y is not an integer, it will be blurred in the corresponding direction. The reason for the blur is: when there are decimals, part of the graphic may be located in one pixel. in the middle, causing the browser to anti-alias these boundaries, resulting in blurring. The reason why this value is a decimal is that when rendering in zrender, the entire data is not placed in the round() method.
Should this code be: `translate(${round(m[4] * mul / mul)} ${round(m[5] * mul / mul)})` Put the entire `m[4] * mul / mul` into the round() method

### Expected Behavior

The desired behavior is that these legends are clear and not blurry.

### Environment

```markdown
- OS:
- Browser:
- Framework:
```

### Any additional comments?

Should that part of the zrender source code be modified? If it cannot be modified, what is the reason?